Associate Professor Julian Berengut

Associate Professor Julian Berengut

Associate Professor
  • 1996 – 1999 Bachelor of Science (Honours) (Physics with Computer Science), UNSW
    First class honours with University Medal
  • 2002 – 2006 PhD in Physics, UNSW
    “Isotope shift and relativistic shift in atomic spectra”
Science
School of Physics

I am the Deputy Head of the School of Physics, convenor and lecturer for third year Statistical Mechanics and Quantum Mechanics courses, and convenor for Honours Journal Club. I am a theoretical physicist with over 80 publications with 2000+ citations, and h-index 30.

  • 2020 –          Associate Professor, UNSW
  • 2013 – 2019 Senior Lecturer, UNSW
  • 2012 – 2014 ARC DECRA, UNSW
  • 2008 – 2010 Vice-Chancellor's Postdoctoral Research Fellow, UNSW
  • 2007 – 2008 Adjunct Associate Research Scientist, Columbia University, New York USA
  • 2006 – 2007 Department of Energy Postdoctoral Fellow, Auburn University, Alabama USA
Location
Old Main Building G61C (Ground floor)
  • Book Chapters | 2018
    Shi C; Gebert F; Gorges C; Kaufmann S; Nörtershäuser W; Sahoo BK; Surzhykov A; Yerokhin VA; Berengut JC; Wolf F; Heip JC; Schmidt PO, 2018, 'Unexpectedly Large Difference of the Electron Density at the Nucleus in the 4p2P1/2,3/2 Fine-Structure Doublet of Ca+', in Exploring the World with the Laser: Dedicated to Theodor Hänsch on his 75th Birthday, pp. 1 - 19, http://dx.doi.org/10.1007/978-3-319-64346-5_1
    Book Chapters | 2014
    Flambaum V; Ong A; Berengut JC, 2014, 'Optical Transitions in Highly Charged Ions for Detection of Variations in the Fine-Structure Constant', in Fundamental physics in particle traps, Springer, pp. 293 - 314, http://dx.doi.org/10.1007/978-3-642-45201-7_9
    Book Chapters | 2010
    Berengut JC; Flambaum VV, 2010, 'Laboratory spectroscopy and the search for variation of the fine-structure constant', in Laser 2009, Springer Berlin Heidelberg, pp. 269 - 278, http://dx.doi.org/10.1007/978-3-642-12286-6_30
  • Journal articles | 2024
    Chang TT; Awazi BB; Berengut JC; Fuchs E; Doret SC, 2024, 'Systematic-free limit on new light scalar bosons via isotope-shift spectroscopy in Ca+', Physical Review A, 110, http://dx.doi.org/10.1103/PhysRevA.110.L030801
    Journal articles | 2024
    König K; Berengut JC; Borschevsky A; Brinson A; Brown BA; Dockery A; Elhatisari S; Eliav E; Ruiz RFG; Holt JD; Hu BS; Karthein J; Lee D; Ma YZ; Meißner UG; Minamisono K; Oleynichenko AV; Pineda SV; Prosnyak SD; Reitsma ML; Skripnikov LV; Vernon A; Zaitsevskii A, 2024, 'Erratum: Nuclear Charge Radii of Silicon Isotopes [Phys. Rev. Lett. 132, 162502 (2024)', Physical review letters, 133, pp. 059901, http://dx.doi.org/10.1103/PhysRevLett.133.059901
    Journal articles | 2024
    König K; Berengut JC; Borschevsky A; Brinson A; Brown BA; Dockery A; Elhatisari S; Eliav E; Ruiz RFG; Holt JD; Hu BS; Karthein J; Lee D; Ma YZ; Meißner UG; Minamisono K; Oleynichenko AV; Pineda SV; Prosnyak SD; Reitsma ML; Skripnikov LV; Vernon A; Zaitsevskii A, 2024, 'Nuclear Charge Radii of Silicon Isotopes', Physical Review Letters, 132, http://dx.doi.org/10.1103/PhysRevLett.132.162502
    Journal articles | 2023
    Carvajal Gallego H; Deprince J; Berengut JC; Palmeri P; Quinet P, 2023, 'Opacity calculations in four to nine times ionized Pr, Nd, and Pm atoms for the spectral analysis of kilonovae', Monthly Notices of the Royal Astronomical Society, 518, pp. 332 - 352, http://dx.doi.org/10.1093/mnras/stac3129
    Journal articles | 2023
    Rehbehn NH; Rosner MK; Berengut JC; Schmidt PO; Pfeifer T; Gu MF; López-Urrutia JRC, 2023, 'Narrow and Ultranarrow Transitions in Highly Charged Xe Ions as Probes of Fifth Forces', Physical Review Letters, 131, http://dx.doi.org/10.1103/PhysRevLett.131.161803
    Journal articles | 2022
    Budker D; Berengut JC; Flambaum VV; Gorchtein M; Jin J; Karbstein F; Krasny MW; Litvinov YA; Pálffy A; Pascalutsa V; Petrenko A; Surzhykov A; Thirolf PG; Vanderhaeghen M; Weidenmüller HA; Zelevinsky V, 2022, 'Expanding Nuclear Physics Horizons with the Gamma Factory (Ann. Phys. 3/2022)', Annalen der Physik, 534, pp. 2270005 - 2270005, http://dx.doi.org/10.1002/andp.202270005
    Journal articles | 2022
    Budker D; Berengut JC; Flambaum VV; Gorchtein M; Jin J; Karbstein F; Krasny MW; Litvinov YA; Pálffy A; Pascalutsa V; Petrenko A; Surzhykov A; Thirolf PG; Vanderhaeghen M; Weidenmüller HA; Zelevinsky V, 2022, 'Expanding Nuclear Physics Horizons with the Gamma Factory', Annalen der Physik, 534, http://dx.doi.org/10.1002/andp.202100284
    Journal articles | 2022
    Carvajal Gallego H; Berengut JC; Palmeri P; Quinet P, 2022, 'Atomic data and opacity calculations in La v-x ions for the investigation of kilonova emission spectra', Monthly Notices of the Royal Astronomical Society, 513, pp. 2302 - 2325, http://dx.doi.org/10.1093/mnras/stac1063
    Journal articles | 2022
    Fadeev P; Berengut JC; Flambaum VV, 2022, 'Effects of variation of the fine structure constant α and quark mass mq in Mössbauer nuclear transitions', Physical Review C, 105, http://dx.doi.org/10.1103/PhysRevC.105.L051303
    Journal articles | 2022
    Figueroa NL; Berengut JC; Dzuba VA; Flambaum VV; Budker D; Antypas D, 2022, 'Precision Determination of Isotope Shifts in Ytterbium and Implications for New Physics', Physical Review Letters, 128, http://dx.doi.org/10.1103/PhysRevLett.128.073001
    Journal articles | 2022
    Gallego HC; Berengut JC; Palmeri P; Quinet P, 2022, 'Large-scale atomic data calculations in Ce V – X ions for application to early kilonova emission from neutron star mergers', Monthly Notices of the Royal Astronomical Society, 509, pp. 6138 - 6154, http://dx.doi.org/10.1093/mnras/stab3423
    Journal articles | 2022
    Han JZ; Pan C; Zhang KY; Yang XF; Zhang SQ; Berengut JC; Goriely S; Wang H; Yu YM; Meng J; Zhang JW; Wang LJ, 2022, 'Isotope shift factors for the Cd+ 5s 2S1/2→5p 2P3/2 transition and determination of Cd nuclear charge radii', Physical Review Research, 4, http://dx.doi.org/10.1103/PhysRevResearch.4.033049
    Journal articles | 2022
    Hur J; Aude Craik DPL; Counts I; Knyazev E; Caldwell L; Leung C; Pandey S; Berengut JC; Geddes A; Nazarewicz W; Reinhard PG; Kawasaki A; Jeon H; Jhe W; Vuletić V, 2022, 'Evidence of Two-Source King Plot Nonlinearity in Spectroscopic Search for New Boson', Physical Review Letters, 128, http://dx.doi.org/10.1103/PhysRevLett.128.163201
    Journal articles | 2021
    Barzakh A; Andreyev AN; Raison C; Cubiss JG; Van Duppen P; Péru S; Hilaire S; Goriely S; Andel B; Antalic S; Al Monthery M; Berengut JC; Bieroń J; Bissell ML; Borschevsky A; Chrysalidis K; Cocolios TE; Day Goodacre T; Dognon JP; Elantkowska M; Eliav E; Farooq-Smith GJ; Fedorov DV; Fedosseev VN; Gaffney LP; Garcia Ruiz RF; Godefroid M; Granados C; Harding RD; Heinke R; Huyse M; Karls J; Larmonier P; Li JG; Lynch KM; Maison DE; Marsh BA; Molkanov P; Mosat P; Oleynichenko AV; Panteleev V; Pyykkö P; Reitsma ML; Rezynkina K; Rossel RE; Rothe S; Ruczkowski J; Schiffmann S; Seiffert C; Seliverstov MD; Sels S; Skripnikov LV; Stryjczyk M; Studer D; Verlinde M; Wilman S; Zaitsevskii AV, 2021, 'Large Shape Staggering in Neutron-Deficient Bi Isotopes', Physical Review Letters, 127, http://dx.doi.org/10.1103/PhysRevLett.127.192501
    Journal articles | 2021
    Fujii K; Berengut JC, 2021, 'Power-Law Intensity Distribution of γ -Decay Cascades: Nuclear Structure as a Scale-Free Random Network', Physical Review Letters, 126, http://dx.doi.org/10.1103/PhysRevLett.126.102502
    Journal articles | 2021
    Hu J; Webb JK; Ayres TR; Bainbridge MB; Barrow JD; Barstow MA; Berengut JC; Carswell RF; Dumont V; Dzuba V; Flambaum VV; Lee CC; Reindl N; Preval SP; Tchang-Brillet W, 2021, 'Measuring the fine-structure constant on a white dwarf surface; A detailed analysis of Fe v absorption in G191-B2B', Monthly Notices of the Royal Astronomical Society, 500, pp. 1466 - 1475, http://dx.doi.org/10.1093/mnras/staa3066
    Journal articles | 2021
    Kahl EV; Raeder S; Eliav E; Borschevsky A; Berengut JC, 2021, 'Ab initio calculations of the spectrum of lawrencium', Physical Review A, 104, http://dx.doi.org/10.1103/PhysRevA.104.052810
    Journal articles | 2021
    Rehbehn NH; Rosner MK; Bekker H; Berengut JC; Schmidt PO; King SA; Micke P; Gu MF; Müller R; Surzhykov A; López-Urrutia JRC, 2021, 'Sensitivity to new physics of isotope-shift studies using the coronal lines of highly charged calcium ions', Physical Review A, 103, http://dx.doi.org/10.1103/PhysRevA.103.L040801
    Journal articles | 2021
    Solaro C; Meyer S; Fisher K; Berengut JC; Fuchs E; Drewsen M, 2021, 'Erratum: Improved isotope-shift-based bounds on bosons beyond the standard model through measurements of the D3/2 2 - D 2 5 /2 interval in Ca+ (Physical Review Letters (2020) 125 (123003) DOI: 10.1103/PhysRevLett.125.123003)', Physical Review Letters, 127, http://dx.doi.org/10.1103/PhysRevLett.127.029901
    Journal articles | 2020
    Berengut JC; Delaunay C; Geddes A; Soreq Y, 2020, 'Generalized King linearity and new physics searches with isotope shifts', Physical Review Research, 2, http://dx.doi.org/10.1103/PhysRevResearch.2.043444
    Journal articles | 2020
    Berengut JF; Wong CK; Berengut JC; Doye JPK; Ouldridge TE; Lee LK, 2020, 'Self-Limiting Polymerization of DNA Origami Subunits with Strain Accumulation', ACS Nano, 14, pp. 17428 - 17441, http://dx.doi.org/10.1021/acsnano.0c07696
    Journal articles | 2020
    Bilous PV; Bekker H; Berengut JC; Seiferle B; Von Der Wense L; Thirolf PG; Pfeifer T; López-Urrutia JRC; Pálffy A, 2020, 'Electronic Bridge Excitation in Highly Charged Th 229 Ions', Physical Review Letters, 124, http://dx.doi.org/10.1103/PhysRevLett.124.192502
    Journal articles | 2020
    Counts I; Hur J; Aude Craik DPL; Jeon H; Leung C; Berengut JC; Geddes A; Kawasaki A; Jhe W; Vuletić V, 2020, 'Evidence for nonlinear isotope shift in Yb+ search for new boson', Physical Review Letters, 125, http://dx.doi.org/10.1103/PhysRevLett.125.123002
    Journal articles | 2020
    Fadeev P; Berengut JC; Flambaum VV, 2020, 'Sensitivity of Th 229 nuclear clock transition to variation of the fine-structure constant', Physical Review A, 102, http://dx.doi.org/10.1103/PhysRevA.102.052833
    Journal articles | 2020
    Fujii K; Berengut JC, 2020, 'Simple Explanation for the Observed Power Law Distribution of Line Intensity in Complex Many-Electron Atoms', Physical Review Letters, 124, http://dx.doi.org/10.1103/PhysRevLett.124.185002
    Journal articles | 2020
    Gustafsson FP; Ricketts CM; Reitsma ML; Garcia Ruiz RF; Bai SW; Berengut JC; Billowes J; Binnersley CL; Borschevsky A; Cocolios TE; Cooper BS; De Groote RP; Flanagan KT; Koszorús ; Neyens G; Perrett HA; Vernon AR; Wang Q; Wilkins SG; Yang XF, 2020, 'Tin resonance-ionization schemes for atomic- And nuclear-structure studies', Physical Review A, 102, http://dx.doi.org/10.1103/PhysRevA.102.052812
    Journal articles | 2020
    Kühn S; Shah C; López-Urrutia JRC; Fujii K; Steinbrügge R; Stierhof J; Togawa M; Harman Z; Oreshkina NS; Cheung C; Kozlov MG; Porsev SG; Safronova MS; Berengut JC; Rosner M; Bissinger M; Ballhausen R; Hell N; Park S; Chung M; Hoesch M; Seltmann J; Surzhykov AS; Yerokhin VA; Wilms J; Porter FS; Stöhlker T; Keitel CH; Pfeifer T; Brown GV; Leutenegger MA; Bernitt S, 2020, 'High Resolution Photoexcitation Measurements Exacerbate the Long-Standing Fe XVII Oscillator Strength Problem', Physical Review Letters, 124, http://dx.doi.org/10.1103/PhysRevLett.124.225001
    Journal articles | 2020
    Nishio A; Berengut JC; Hasuo M; Fujii K, 2020, 'Population kinetics of many-electron atoms in ionizing plasmas studied using a continuous collisional radiative model', Physical Review E, 102, http://dx.doi.org/10.1103/PhysRevE.102.053211
    Journal articles | 2020
    Scheers J; Scheers J; Shah C; Ryabtsev A; Bekker H; Torretti F; Torretti F; Sheil J; Czapski DA; Berengut JC; Ubachs W; Ubachs W; López-Urrutia JRC; Hoekstra R; Hoekstra R; Versolato OO, 2020, 'EUV spectroscopy of highly charged Sn13+-Sn15+ ions in an electron-beam ion trap', Physical Review A, 101, http://dx.doi.org/10.1103/PhysRevA.101.062511
    Journal articles | 2020
    Solaro C; Meyer S; Fisher K; Berengut JC; Fuchs E; Drewsen M, 2020, 'Improved isotope-shift-based bounds on bosons beyond the standard model through measurements of the D 2 3 /2- D 2 5 /2 interval in Ca+', Physical Review Letters, 125, http://dx.doi.org/10.1103/PhysRevLett.125.123003
    Journal articles | 2019
    Bekker H; Borschevsky A; Harman Z; Keitel CH; Pfeifer T; Schmidt PO; Crespo López-Urrutia JR; Berengut JC, 2019, 'Detection of the 5p – 4f orbital crossing and its optical clock transition in Pr9+', Nature Communications, 10, pp. 5651, http://dx.doi.org/10.1038/s41467-019-13406-9
    Journal articles | 2019
    Berengut JF; Berengut JC; Doye JPK; Prešern D; Kawamoto A; Ruan J; Wainwright MJ; Lee LK, 2019, 'Design and synthesis of pleated DNA origami nanotubes with adjustable diameters', Nucleic Acids Research, 47, pp. 11963 - 11975, http://dx.doi.org/10.1093/nar/gkz1056
    Journal articles | 2019
    Hu J; Webb JK; Ayres TR; Bainbridge MB; Barrow JD; Barstow MA; Berengut JC; Carswell RF; Dzuba VA; Flambaum VV; Holberg JB; Lee CC; Preval SP; Reindl N; Tchang-Brillet W, 2019, 'Constraining the magnetic field on white dwarf surfaces; Zeeman effects and fine structure constant variation', Monthly Notices of the Royal Astronomical Society, 485, pp. 5050 - 5058, http://dx.doi.org/10.1093/mnras/stz739
    Journal articles | 2019
    Kahl EV; Berengut JC; Laatiaoui M; Eliav E; Borschevsky A, 2019, 'High-precision ab initio calculations of the spectrum of Lr+', Physical Review A, 100, http://dx.doi.org/10.1103/PhysRevA.100.062505
    Journal articles | 2019
    Kahl EV; Berengut JC, 2019, 'AMBiT: A programme for high-precision relativistic atomic structure calculations', Computer Physics Communications, 238, pp. 232 - 243, http://dx.doi.org/10.1016/j.cpc.2018.12.014
    Journal articles | 2019
    Ohayon B; Rahangdale H; Geddes AJ; Berengut JC; Ron G, 2019, 'Isotope shifts in Ne 20,22: Precision measurements and global analysis in the framework of intermediate coupling', Physical Review A, 99, http://dx.doi.org/10.1103/PhysRevA.99.042503
    Journal articles | 2018
    Berengut JC; Budker D; Delaunay C; Flambaum VV; Frugiuele C; Fuchs E; Grojean C; Harnik R; Ozeri R; Perez G; Soreq Y, 2018, 'Probing New Long-Range Interactions by Isotope Shift Spectroscopy', Physical Review Letters, 120, http://dx.doi.org/10.1103/PhysRevLett.120.091801
    Journal articles | 2018
    Berengut JC, 2018, 'Resonant Electronic-Bridge Excitation of the U 235 Nuclear Transition in Ions with Chaotic Spectra', Physical Review Letters, 121, http://dx.doi.org/10.1103/PhysRevLett.121.253002
    Journal articles | 2018
    Dzuba VA; Berengut JC; Ginges JSM; Flambaum VV, 2018, 'Screening of an oscillating external electric field in atoms', Physical Review A, 98, http://dx.doi.org/10.1103/PhysRevA.98.043411
    Journal articles | 2018
    Geddes AJ; Czapski DA; Kahl EV; Berengut JC, 2018, 'Saturated-configuration-interaction calculations for five-valent Ta and Db', Physical Review A, 98, http://dx.doi.org/10.1103/PhysRevA.98.042508
    Journal articles | 2018
    Geddes AJ; Skripnikov LV; Borschevsky A; Berengut JC; Flambaum VV; Rakitzis TP, 2018, 'Enhanced nuclear-spin-dependent parity-violation effects using the HgH 199 molecule', Physical Review A, 98, http://dx.doi.org/10.1103/PhysRevA.98.022508
    Journal articles | 2018
    Raeder S; Ackermann D; Backe H; Beerwerth R; Berengut JC; Block M; Borschevsky A; Cheal B; Chhetri P; Düllmann CE; Dzuba VA; Eliav E; Even J; Ferrer R; Flambaum VV; Fritzsche S; Giacoppo F; Götz S; Heßberger FP; Huyse M; Kaldor U; Kaleja O; Khuyagbaatar J; Kunz P; Laatiaoui M; Lautenschläger F; Lauth W; Mistry AK; Minaya Ramirez E; Nazarewicz W; Porsev SG; Safronova MS; Safronova UI; Schuetrumpf B; Van Duppen P; Walther T; Wraith C; Yakushev A, 2018, 'Probing Sizes and Shapes of Nobelium Isotopes by Laser Spectroscopy', Physical Review Letters, 120, http://dx.doi.org/10.1103/PhysRevLett.120.232503
    Journal articles | 2018
    Scheers J; Ryabtsev A; Borschevsky A; Berengut JC; Haris K; Schupp R; Kurilovich D; Torretti F; Bayerle A; Eliav E; Ubachs W; Versolato OO; Hoekstra R, 2018, 'Energy-level structure of Sn3+ ions', Physical Review A, 98, http://dx.doi.org/10.1103/PhysRevA.98.062503
    Journal articles | 2017
    Bainbridge MB; Barstow MA; Reindl N; Lydia Tchang-Brillet W; Ayres TR; Webb JK; Barrow JD; Hu J; Holberg JB; Preval SP; Ubachs W; Dzuba VA; Flambaum VV; Dumont V; Berengut JC, 2017, 'Probing the gravitational dependence of the fine-structure constant from observations of white dwarf stars', Universe, 3, http://dx.doi.org/10.3390/universe3020032
    Journal articles | 2017
    Dzuba VA; Berengut JC; Harabati C; Flambaum VV, 2017, 'Combining configuration interaction with perturbation theory for atoms with a large number of valence electrons', Physical Review A, 95, http://dx.doi.org/10.1103/PhysRevA.95.012503
    Journal articles | 2017
    Harabati C; Berengut JC; Flambaum VV; Dzuba VA, 2017, 'Electron recombination with tungsten ions with open f-shells', Journal of Physics B: Atomic, Molecular and Optical Physics, 50, http://dx.doi.org/10.1088/1361-6455/aa6cd1
    Journal articles | 2017
    Shi C; Gebert F; Gorges C; Kaufmann S; Nörtershäuser W; Sahoo BK; Surzhykov A; Yerokhin VA; Berengut JC; Wolf F; Heip JC; Schmidt PO, 2017, 'Unexpectedly large difference of the electron density at the nucleus in the 4p2P1/2,3/2 fine-structure doublet of Ca +', Applied Physics B: Lasers and Optics, 123, http://dx.doi.org/10.1007/s00340-016-6572-z
    Journal articles | 2017
    Torretti F; Windberger A; Ryabtsev A; Dobrodey S; Bekker H; Ubachs W; Hoekstra R; Kahl EV; Berengut JC; López-Urrutia JRC; Versolato OO, 2017, 'Optical spectroscopy of complex open- 4d -shell ions Sn7+-Sn10+', Physical Review A, 95, http://dx.doi.org/10.1103/PhysRevA.95.042503
    Journal articles | 2016
    Berengut JC, 2016, 'Particle-hole configuration interaction and many-body perturbation theory: Application to Hg+', Physical Review A, 94, http://dx.doi.org/10.1103/PhysRevA.94.012502
    Journal articles | 2016
    Ginges JSM; Berengut JC, 2016, 'Atomic many-body effects and Lamb shifts in alkali metals', Physical Review A, 93, http://dx.doi.org/10.1103/PhysRevA.93.052509
    Journal articles | 2016
    Ginges JSM; Berengut JC, 2016, 'QED radiative corrections and many-body effects in atoms: Vacuum polarization and binding energy shifts in alkali metals', Journal of Physics B: Atomic, Molecular and Optical Physics, 49, http://dx.doi.org/10.1088/0953-4075/49/9/095001
    Journal articles | 2015
    Berengut JC; Harabati C; Dzuba VA; Flambaum VV; Gribakin GF, 2015, 'Level-resolved quantum statistical theory of electron capture into many-electron compound resonances in highly charged ions', Physical Review A - Atomic, Molecular, and Optical Physics, 92, http://dx.doi.org/10.1103/PhysRevA.92.062717
    Journal articles | 2015
    Gebert F; Wan Y; Wolf F; Angstmann CN; Berengut JC; Schmidt PO, 2015, 'Precision Isotope Shift Measurements in Calcium Ions Using Quantum Logic Detection Schemes', Physical Review Letters, 115, pp. 053003, http://dx.doi.org/10.1103/PhysRevLett.115.053003
    Journal articles | 2015
    Windberger A; Crespo López-Urrutia JR; Bekker H; Oreshkina NS; Berengut JC; Bock V; Borschevsky A; Dzuba VA; Eliav E; Harman Z; Kaldor U; Kaul S; Safronova UI; Flambaum VV; Keitel CH; Schmidt PO; Ullrich J; Versolato OO, 2015, 'Identification of the predicted 5s-4f level crossing optical lines with applications to metrology and searches for the variation of fundamental constants', Physical Review Letters, 114, http://dx.doi.org/10.1103/PhysRevLett.114.150801
    Journal articles | 2014
    Gossel GH; Flambaum VV; Berengut JC, 2014, 'Resonance scattering and the passage to bound states in the field of near-black-hole objects', International Journal of Modern Physics D, 23, http://dx.doi.org/10.1142/S0218271814500898
    Journal articles | 2014
    Murphy MT; Berengut JC, 2014, 'Laboratory atomic transition data for precise optical quasar absorption spectroscopy', Monthly Notices of the Royal Astronomical Society, 438, pp. 388 - 411, http://dx.doi.org/10.1093/mnras/stt2204
    Journal articles | 2013
    Berengut JC; Epelbaum E; Flambaum V; Hanhart C; Meifner U-G; Nebreda J; Pelaez JR, 2013, 'Varying the light quark mass: impact on the nuclear force and Big Bang nucleosynthesis', Physical Review D, 87, pp. 085018-1 - 085018-17, http://dx.doi.org/10.1103/PhysRevD.87.085018
    Journal articles | 2013
    Berengut JC; Flambaum V; Ong A; Webb JK; Barrow JD; Barstow MA; Preval SP; Holberg JB, 2013, 'Limits on the Dependence of the Fine-Structure Constant on Gravitational Potential from White-Dwarf Spectra', Physical Review Letters, 111, pp. 010801-1 - 010801-5, http://dx.doi.org/10.1103/PhysRevLett.111.010801
    Journal articles | 2013
    Berengut JC; Flambaum VV; Ong A, 2013, 'Testing spatial α-variation with optical atomic clocks based on highly charged ions', EPJ Web of Conferences, 57, http://dx.doi.org/10.1051/epjconf/20135702001
    Journal articles | 2013
    Gossel GH; Berengut JC; Flambaum V; Gribakin G, 2013, 'Dense spectrum of resonances and spin-1/2 particle capture in a near-black-hole metric', Physical Review Letters, 88, pp. 027501-1 - 027501-6, http://dx.doi.org/10.1103/PhysRevD.88.027501
    Journal articles | 2013
    Ong A; Berengut JC; Flambaum VV, 2013, 'Measuring chemical evolution and gravitational dependence of α using ultraviolet Fe v and Ni v transitions in white-dwarf spectra', Physical Review A - Atomic, Molecular, and Optical Physics, 88, http://dx.doi.org/10.1103/PhysRevA.88.052517
    Journal articles | 2013
    Spencer-Smith AF; Gossel GH; Berengut JC; Flambaum V, 2013, 'Bound states of spin-half particles in a static gravitational field close to the black hole field', General Relativity and Gravitation, 45, pp. 613 - 630, http://dx.doi.org/10.1007/s10714-012-1490-9
    Journal articles | 2013
    Stadnik YV; Gossel GH; Flambaum VV; Berengut JC, 2013, 'Resonant scattering of light in a near-black-hole metric', European Physical Journal C, 73, pp. 1 - 7, http://dx.doi.org/10.1140/epjc/s10052-013-2605-5
    Journal articles | 2012
    Berengut JC; Dzuba VA; Flambaum V; Ong A, 2012, 'Highly charged ions with E1, M1, and E2 transitions within laser range', Physical Review A, 86, pp. 022517-1 - 022517-13, http://dx.doi.org/10.1103/PhysRevA.86.022517
    Journal articles | 2012
    Berengut JC; Dzuba VA; Flambaum V; Ong AS, 2012, 'Optical transitions in highly charged californium ions with high sensitivity to variation of the fine-structure constant', Physical Review Letters, 109, pp. 070802-1 - 070802-5, http://dx.doi.org/10.1103/PhysRevLett.109.070802
    Journal articles | 2012
    Berengut JC; Flambaum V, 2012, 'Comment on "global positioning system test of the local position invariance of Planck's constant"', Physical Review Letters, 109, pp. 068901-1 - 068901-1, http://dx.doi.org/10.1103/PhysRevLett.109.068901
    Journal articles | 2012
    Berengut JC; Flambaum V, 2012, 'Manifestations of a spatial variation of fundamental constants in atomic and nuclear clocks, Oklo, meteorites, and cosmological phenomena', Europhysics Letters, 97, pp. 20006-1 - 20006-5, http://dx.doi.org/10.1209/0295-5075/97/20006
    Journal articles | 2012
    Berengut JC; Kava EM; Flambaum V, 2012, 'Is there a spatial gradient in values of the fine-structure constant? A reanalysis of the results', Astronomy and Astrophysics, 542, pp. A118-1 - A118-4, http://dx.doi.org/10.1051/0004-6361/201219286
    Journal articles | 2012
    Dzuba VA; Berengut JC; Flambaum V; Roberts B, 2012, 'Revisiting parity nonconservation in cesium', Physical Review Letters, 109, pp. 203003-1 - 203003-5, http://dx.doi.org/10.1103/PhysRevLett.109.203003
    Journal articles | 2011
    Berengut J; Dzuba V; Flambaum VV; Ong A, 2011, 'Optical clocks using highly charged ions to probe variation of the fine-structure constant', Optics InfoBase Conference Papers, pp. 1453 - 1454
    Journal articles | 2011
    Berengut J; Flambaum V, 2011, 'Enhanced laboratory searches for variation of fundamental constants', Optics InfoBase Conference Papers, pp. 1084 - 1085
    Journal articles | 2011
    Berengut JC; Dzuba VA; Flambaum V; Ong A, 2011, 'Electron-hole transitions in multiply-charged ions for precision laser spectroscopy and searching for alpha-variation in alpha', Physical Review Letters, 106, pp. 210802-1 - 210802-4, http://dx.doi.org/10.1103/PhysRevLett.106.2310802
    Journal articles | 2011
    Berengut JC; Dzuba VA; Flambaum V, 2011, 'Transitions in Zr, Hf, Ta, W, Re, Hg, Ac, and U ions with high sensitivity to variation of the fine-structure constant', Physical Review A, 84, pp. 054501-1 - 054501-4, http://dx.doi.org/10.1103/PhysRevA.84.054501
    Journal articles | 2011
    Berengut JC; Flambaum V; Kava EM, 2011, 'Search for variation of fundamental constants and violations of fundamental symmetries using isotope comparisons', Physical Review A, 84, pp. 042510-1 - 042510-6, http://dx.doi.org/10.1103/PhysRevA.84.042510
    Journal articles | 2011
    Berengut JC; Flambaum V; King JA; Curran SJ; Webb JK, 2011, 'Is there further evidence for spatial variation of fundamental constants?', Physical Review - Section D - Particles and Fields, 83, pp. 123506-1 - 123506-8, http://dx.doi.org/10.1103/PhysRevD.83.123506
    Journal articles | 2011
    Berengut JC, 2011, 'Isotope shifts and relativistic shifts of Cr ii for the study of á variation in quasar absorption spectra', Physical Review A, 84, pp. 052520-1 - 052520-6, http://dx.doi.org/10.1103/PhysRevA.84.052520
    Journal articles | 2011
    Curran SJ; Tanna A; Koch FE; Berengut JC; Webb JK; Stark A; Flambaum V, 2011, 'Measuring space-time variation of the fundamental constants with redshifted submillimetre transitions of neutral carbon', Astronomy and Astrophysics, 533, pp. A55-1 - A55-9, http://dx.doi.org/10.1051/0004-6361/201117457
    Journal articles | 2011
    Gossel GH; Berengut JC; Flambaum V, 2011, 'Energy levels of a scalar particle in a static gravitational field close to the black hole limit', General Relativity and Gravitation, 43, pp. 2673 - 2683, http://dx.doi.org/10.1007/s10714-011-1191-9
    Journal articles | 2011
    Lybarger WE; Berengut JC; Chiaverini J, 2011, 'Precision measurement of the 5 2S1/2 - 4 2D5/2 quadrupole transition isotope shift between Sr88+ and Sr86+', Physical Review A, 83, pp. 052509-1 - 052509-7, http://dx.doi.org/10.1103/PhysRevA.83.052509
    Journal articles | 2010
    Berengut JC; Dzuba VA; Flambaum V, 2010, 'Enhanced laboratory sensitivity to variation of the fine-structure constant using highly charged ions', Physical Review Letters, 105, pp. 120801-1 - 120801-4, http://dx.doi.org/10.1103/PhysRevLett.105.120801
    Journal articles | 2010
    Berengut JC; Flambaum V; Dmitriev VF, 2010, 'Effect of quark mass variation on big bang nucleosynthesis', Physics Letters B, 683, pp. 114 - 118, http://dx.doi.org/10.1016/j.physletb.2009.12.002
    Journal articles | 2010
    Berengut JC; Flambaum V, 2010, 'Laboratory spectroscopy and the search for variation of the fine-structure constant', Hyperfine Interactions, 196, pp. 269 - 278, http://dx.doi.org/10.1007/s10751-009-0146-y
    Journal articles | 2010
    Berengut JC; Flambaum V, 2010, 'Testing Time Variation of Fundamental Constants using a 229Th Nuclear Clock', Nuclear Physics News-International, 20, pp. 19 - 22, http://www.tandf.co.uk/journals/titles/10506896.asp
    Journal articles | 2010
    Ong AS; Berengut JC; Flambaum V, 2010, 'Effect of spin-orbit nuclear charge density corrections due to the anomalous magnetic moment on halonuclei', Physical Review C, 82, pp. 014320-1 - 014320-6, http://dx.doi.org/10.1103/PhysRevC.82.014320
    Journal articles | 2009
    Berengut JC; Dzuba VA; Flambaum V; Porsev S, 2009, 'Proposed Experimental Method to Determine alpha Sensitivity of Splitting between Ground and 7.6 eV Isomeric States in Th-229', Physical Review Letters, 102, pp. 210801-1 - 210801-4, http://dx.doi.org/10.1103/PhysRevLett.102.210801
    Journal articles | 2009
    Berengut JC; Dzuba VA; Flambaum VV; King JA; Kozlov MG; Murphy MT; Webb JK, 2009, 'Searching for space-time variation of the fine structure constant using QSO spectra: overview and future prospects', Proceedings of the International Astronomical Union, 5, pp. 304 - 304, http://dx.doi.org/10.1017/s1743921310009440
    Journal articles | 2009
    Berengut JC; Flambaum V; King-Lacroix J, 2009, 'Magnetic blackbody shift of hyperfine transitions for atomic clocks', Physical Review A, 80, pp. 064101-1 - 064101-3, http://dx.doi.org/10.1103/PhysRevA.80.064101
    Journal articles | 2009
    Flambaum V; Berengut JC, 2009, 'Space-time variation of coupling constants and fundamental masses', International Journal of Modern Physics A, 24, pp. 3342 - 3353, http://dx.doi.org/10.1142/S0217751X0904693X
    Journal articles | 2008
    Berengut JC; Flambaum V; Kozlov MG, 2008, 'Isotope shift calculations in Ti II', Journal of Physics B - Atomic Molecular and Optical Physics, 41, pp. 235702 - 235707
    Journal articles | 2008
    Berengut JC; Loch SD; Pindzola MS; Ballance C; Griffin D; Fogle M; Bannister ME, 2008, 'Electron-impact ionization of B+', Physical Review A, 78, pp. 012704, http://dx.doi.org/10.1103/PhysRevA.78.012704
    Journal articles | 2008
    Griffin D; Ballance C; Mitnik D; Berengut JC, 2008, 'Dirac R-matrix calculations of electron-impact excitation of neon-like krypton', Journal of Physics B - Atomic Molecular and Optical Physics, 41, pp. 215201 - 215210
    Journal articles | 2007
    Berengut JC; Loch SD; Ballance CP; Pindzola MS, 2007, 'Electron-impact ionization of the metastable excited states of Li+', Journal of Physics B - Atomic Molecular and Optical Physics, 40, pp. 1331 - 1336, http://dx.doi.org/10.1088/0953-4075/40/7/002
    Journal articles | 2007
    Berengut JC; Loch SD; Pindzola MS; Ballance C; Griffin D, 2007, 'Electron-impact ionization of the boron atom', Physical Review A, 76, pp. 042704, http://dx.doi.org/10.1103/PhysRevA.76.042704
    Journal articles | 2007
    Pindzola MS; Robicheaux F; Loch SD; Berengut JC; Colgan J; Foster M; Griffin DC; Balance CP; Badnell NR; Witthoeft MC; Schultz DR; Minami T, 2007, 'Time-dependent close-coupling calculations of atomic and molecular collision processes', Journal of Physics: Conference Series, 88, http://dx.doi.org/10.1088/1742-6596/88/1/012012
    Journal articles | 2007
    Pindzola MS; Robicheaux F; Loch SD; Berengut JC; Topcu T; Colgan J; Foster M; Griffin D; Ballance C; Schultz DR; Minami T; Badnell NR; Witthoeft MC; Plante DR; Mitnik D; Ludlow JA; Kleiman U, 2007, 'The time-dependent close-coupling method for atomic and molecular collision processes', Journal of Physics B - Atomic Molecular and Optical Physics, 40, pp. R39 - R60, http://dx.doi.org/10.1088/0953-4075/40/7/R01
    Journal articles | 2006
    Berengut JC; Flambaum V; Kozlov MG, 2006, 'Calculation of isotope shifts and relativistic shifts in CI, CII, CIII, and CIV', Physical Review A, 73, pp. 12504 - 12516, http://dx.doi.org/10.1103/PhysRevA.73.012504
    Journal articles | 2005
    Berengut JC; Flambaum V; Kozlov MG, 2005, 'Calculation of relativistic and isotope shifts in MgI', Physical Review A, 72, pp. 44501 - 44504
    Journal articles | 2004
    Berengut JC; Dzuba VA; Flambaum V; Kozlov MG, 2004, 'Configuration-interaction calculation for the isotope shift in Mg I', Physical Review A, 69, pp. 441021 - 441024
    Journal articles | 2004
    Berengut JC; Dzuba VA; Flambaum V; Marchenko M, 2004, 'alpha dependence of transition frequencies for some ions of Ti, Mn, Na,C, and O and the search for variation of the fine-structure constant', Physical Review A, 70, pp. 641011 - 641014
    Journal articles | 2004
    Berengut JC; Dzuba VA; Flambaum VV; Marchenko MV, 2004, 'α dependence of transition frequencies for some ions of Ti, Mn, Na, C, and O and the search for variation of the fine-structure constant', Physical Review A - Atomic, Molecular, and Optical Physics, 70, http://dx.doi.org/10.1103/PhysRevA.70.064101
    Journal articles | 2004
    Kozlov MG; Korol V; Berengut JC; Dzuba VA; Flambaum V, 2004, 'Space-time variation of the fine-structure constant and evolution of isotope abundances', Physical Review A, 70, pp. 621081 - 621086
    Journal articles | 2003
    Berengut JC; Dzuba VA; Flambaum V, 2003, 'Isotope-shift calculations for atoms with one valence electron', Physical Review A, 68, pp. 22502 - 22507
    Journal articles | 2001
    Flambaum V; Berengut JC, 2001, 'Atom made from charged elementary black hole', Physical Review - Section D - Particles and Fields, 63, pp. 084010, http://dx.doi.org/10.1103/PhysRevD.63.084010
    Journal articles | 2000
    Berengut JC; Flambaum V; Gribakin GF, 2000, 'Unusual statistics of interference effects in neutron scattering from compound nuclei', Physical Review C, pp. 024610-1 - 024610-8
  • Preprints | 2024
    Berengut JC; Oreshkina NS, 2024, Second-order hyperfine structure in strontium and impact on new physics searches using isotope shift spectroscopy
    Conference Papers | 2023
    Aude Craik D; Hur J; Counts I; Kniazev E; Caldwell L; Leung C; Geddes A; Berengut J; Pandey S; Kawasaki A; Reinhard P-G; Nazarewicz W; Jeon H; Jhe W; Vuletić V, 2023, 'Fifth-force search with trapped Yb ions', in Shahriar SM; Scheuer J (ed.), Quantum Sensing, Imaging, and Precision Metrology, SPIE, pp. 83 - 83, presented at Quantum Sensing, Imaging, and Precision Metrology, 28 January 2023 - 03 February 2023, http://dx.doi.org/10.1117/12.2657359
    Preprints | 2023
    Chang TT; Awazi BB; Berengut JC; Fuchs E; Doret SC, 2023, New limit on isotope-shift-based bounds for beyond Standard Model light Bosons via King's linearity in Ca$^+$, , http://dx.doi.org/10.48550/arxiv.2311.17337
    Preprints | 2023
    König K; Berengut JC; Borschevsky A; Brinson A; Brown BA; Dockery A; Elhatisari S; Eliav E; Ruiz RFG; Holt JD; Hu B-S; Karthein J; Lee D; Ma Y-Z; Meißner U-G; Minamisono K; Oleynichenko AV; Pineda S; Prosnyak SD; Reitsma ML; Skripnikov LV; Vernon A; Zaitsevski A, 2023, Nuclear charge radii of silicon isotopes, , http://dx.doi.org/10.48550/arxiv.2309.02037
    Preprints | 2023
    Oreshkina NS; Berengut JC, 2023, Comment on "Nuclear Excitation by Free Muon Capture", , http://dx.doi.org/10.48550/arxiv.2307.05577
    Preprints | 2023
    Rehbehn N-H; Rosner MK; Berengut JC; ~Schmidt PO; Pfeifer T; Gu MF; López-Urrutia JRC, 2023, Narrow and ultra-narrow transitions in highly charged Xe ions as probes of fifth forces, , http://dx.doi.org/10.48550/arxiv.2309.17141
    Preprints | 2022
    Hur J; Craik DPLA; Counts I; Knyazev E; Caldwell L; Leung C; Pandey S; Berengut JC; Geddes A; Nazarewicz W; Reinhard P-G; Kawasaki A; Jeon H; Jhe W; Vuletić V, 2022, Evidence of Two-Source King Plot Nonlinearity in Spectroscopic Search for New Boson, , http://dx.doi.org/10.48550/arxiv.2201.03578
    Preprints | 2021
    Budker D; Berengut JC; Flambaum VV; Gorchtein M; Jin J; Karbstein F; Krasny MW; Litvinov YA; Pálffy A; Pascalutsa V; Petrenko A; Surzhykov A; Thirolf PG; Vanderhaeghen M; Weidenmüller HA; Zelevinsky V, 2021, Expanding Nuclear Physics Horizons with the Gamma Factory, , http://dx.doi.org/10.48550/arxiv.2106.06584
    Preprints | 2021
    Fadeev P; Berengut JC; Flambaum VV, 2021, Effects of variation of the fine structure constant $\alpha$ and quark mass $m_q$ in Mössbauer nuclear transitions, , http://dx.doi.org/10.48550/arxiv.2112.13195
    Preprints | 2021
    Figueroa NL; Berengut JC; Dzuba VA; Flambaum VV; Budker D; Antypas D, 2021, Precision determination of isotope shifts in ytterbium and implications for new physics, , http://dx.doi.org/10.48550/arxiv.2111.01429
    Preprints | 2021
    Kahl EV; Raeder S; Eliav E; Borschevsky A; Berengut JC, 2021, Ab initio calculations of the spectrum of lawrencium, , http://dx.doi.org/10.48550/arxiv.2103.11287
    Preprints | 2021
    Rehbehn N-H; Rosner MK; Bekker H; Berengut JC; Schmidt PO; King SA; Micke P; Gu MF; Müller R; Surzhykov A; López-Urrutia JRC, 2021, Sensitivity to New Physics of Isotope Shift Studies using the Coronal Lines of Highly Charged Calcium Ions, , http://dx.doi.org/10.48550/arxiv.2102.02309
    Preprints | 2020
    Berengut JC; Delaunay C; Geddes A; Soreq Y, 2020, Generalized King linearity and new physics searches with isotope shifts, , http://dx.doi.org/10.48550/arxiv.2005.06144
    Preprints | 2020
    Bilous PV; Bekker H; Berengut J; Seiferle B; von der Wense L; Thirolf PG; Pfeifer T; López-Urrutia JRC; Pálffy A, 2020, Electronic bridge excitation in highly charged Th-229 ions, , http://dx.doi.org/10.48550/arxiv.2001.06421
    Preprints | 2020
    Counts I; Hur J; Craik DPLA; Jeon H; Leung C; Berengut J; Geddes A; Kawasaki A; Jhe W; Vuletić V, 2020, Evidence for Nonlinear Isotope Shift in Yb$^+$ Search for New Boson, , http://dx.doi.org/10.48550/arxiv.2004.11383
    Preprints | 2020
    Fadeev P; Berengut JC; Flambaum VV, 2020, Sensitivity of $^{229}$Th nuclear clock transition to variation of the fine-structure constant, , http://dx.doi.org/10.48550/arxiv.2007.00408
    Preprints | 2020
    Fujii K; Berengut JC, 2020, Power-law intensity distribution in $\gamma$-decay cascades -- Nuclear Structure as a Scale-Free Random Network, , http://dx.doi.org/10.48550/arxiv.2005.11844
    Preprints | 2020
    Hu J; Webb JK; Ayres TR; Bainbridge MB; Barrow JD; Barstow MA; Berengut JC; Carswell RF; Dumont V; Dzuba V; Flambaum VV; Lee CC; Reindl N; Preval SP; Tchang-Brillet W-ÜL, 2020, Measuring the fine structure constant on a white dwarf surface; a detailed analysis of Fe V absorption in G191-B2B, , http://dx.doi.org/10.48550/arxiv.2007.10905
    Preprints | 2020
    Nishio A; Berengut JC; Hasuo M; Fujii K, 2020, Population kinetics of many-electron atoms in ionizing plasmas studied using a continuous collisional radiative model, , http://dx.doi.org/10.48550/arxiv.2006.06812
    Preprints | 2020
    Solaro C; Meyer S; Fisher K; Berengut JC; Fuchs E; Drewsen M, 2020, Improved isotope-shift-based bounds on bosons beyond the Standard Model through measurements of the $^2$D$_{3/2} - ^2$D$_{5/2}$ interval in Ca$^+$, , http://dx.doi.org/10.48550/arxiv.2005.00529
    Preprints | 2019
    Bekker H; Borschevsky A; Harman Z; Keitel CH; Pfeifer T; Schmidt PO; López-Urrutia JRC; Berengut JC, 2019, Detection of the $5p-4f$ orbital crossing and its optical clock transition in Pr$^{9+}$, , http://dx.doi.org/10.48550/arxiv.1910.09010
    Preprints | 2019
    Fujii K; Berengut JC, 2019, A Simple Explanation for the Observed Power Law Distribution of Line Intensity in Complex Many-Electron Atoms, , http://dx.doi.org/10.48550/arxiv.1908.10464
    Preprints | 2019
    Kahl EV; Berengut JC; Laatiaoui M; Eliav E; Borschevsky A, 2019, High-precision ab initio calculations of the spectrum of Lr$^{+}$, , http://dx.doi.org/10.48550/arxiv.1908.04578
    Preprints | 2019
    Kühn S; Shah C; López-Urrutia JRC; Fujii K; Steinbrügge R; Stierhof J; Togawa M; Harman Z; Oreshkina NS; Cheung C; Kozlov MG; Porsev SG; Safronova MS; Berengut JC; Rosner M; Bissinger M; Ballhausen R; Hell N; Park S; Chung M; Hoesch M; Seltmann J; Surzhykov AS; Yerokhin VA; Wilms J; Porter FS; Stöhlker T; Keitel CH; Pfeifer T; Brown GV; Leutenegger MA; Bernitt S, 2019, High Resolution Photoexcitation Measurements Exacerbate the Long-Standing Fe XVII Oscillator Strength Problem, http://dx.doi.org/10.48550/arxiv.1911.09707
    Preprints | 2019
    Ohayon B; Rahangdale H; Geddes AJ; Berengut JC; Ron G, 2019, Isotope shifts in $^{20,22}$Ne -- Precision measurements and global analysis in the framework of intermediate coupling, , http://dx.doi.org/10.48550/arxiv.1909.01991
    Preprints | 2018
    Dzuba VA; Berengut JC; Ginges JSM; Flambaum VV, 2018, Screening of oscillating external electric field in atoms, , http://dx.doi.org/10.48550/arxiv.1805.04989
    Preprints | 2018
    Geddes AJ; Czapski DA; Kahl EV; Berengut JC, 2018, Saturated configuration interaction calculations for five-valent Ta and Db, , http://dx.doi.org/10.48550/arxiv.1805.06615
    Preprints | 2018
    Geddes AJ; Skripnikov LV; Borschevsky A; Berengut JC; Flambaum VV; Rakitzis TP, 2018, Enhanced nuclear spin dependent parity violation effects using the 199HgH molecule, , http://dx.doi.org/10.48550/arxiv.1804.05475
    Preprints | 2018
    Hu J; Webb JK; Ayres TR; Bainbridge MB; Barrow JD; Barstow MA; Berengut JC; Carswell RF; Dzuba VA; Flambaum VV; Holberg JB; Lee CC; Preval SP; Reindl N; Tchang-Brillet W-ÜL, 2018, Constraining the magnetic field on white dwarf surfaces; Zeeman effects and fine structure constant variation, , http://dx.doi.org/10.48550/arxiv.1812.11480
    Preprints | 2018
    Kahl EV; Berengut JC, 2018, AMBiT: A program for high-precision relativistic atomic structure calculations, , http://dx.doi.org/10.48550/arxiv.1805.11265
    Preprints | 2018
    Scheers J; Ryabtsev A; Borschevsky A; Berengut JC; Haris K; Schupp R; Kurilovich D; Torretti F; Bayerle A; Eliav E; Ubachs W; Versolato OO; Hoekstra R, 2018, Energy Level Structure of Sn$^{3+}$ Ions, , http://dx.doi.org/10.48550/arxiv.1807.01644
    Preprints | 2018
    Tan HBT; Flambaum VV; Berengut JC, 2018, Dark Matter near gravitating bodies, , http://dx.doi.org/10.48550/arxiv.1808.01856
    Preprints | 2017
    Bainbridge MB; Barstow MA; Reindl N; Tchang-Brillet W-ÜL; Ayres TR; Webb JK; Barrow JD; Hu J; Holberg JB; Preval SP; Ubachs W; Dzuba VA; Flambaum VV; Dumont V; Berengut JC, 2017, Probing the Gravitational Dependence of the Fine-Structure Constant from Observations of White Dwarf Stars, , http://dx.doi.org/10.48550/arxiv.1702.01757
    Preprints | 2017
    Berengut JC; Budker D; Delaunay C; Flambaum VV; Frugiuele C; Fuchs E; Grojean C; Harnik R; Ozeri R; Perez G; Soreq Y, 2017, Probing new light force-mediators by isotope shift spectroscopy, , http://dx.doi.org/10.48550/arxiv.1704.05068
    Conference Papers | 2017
    Ubachs W; Crespo Lopez-Urrutia J; Berengut J; Borschevsky A; Ryabtsev A; Versolato O; Hoekstra R; Windberger A; Torretti F, 2017, 'SPECTROSCOPY OF HIGHLY CHARGED TIN IONS FOR AN EXTREME ULTRAVIOLET LIGHT SOURCE FOR LITHOGRAPHY', in Proceedings of the 72nd International Symposium on Molecular Spectroscopy, University of Illinois at Urbana-Champaign, presented at 72nd International Symposium on Molecular Spectroscopy, http://dx.doi.org/10.15278/isms.2017.fe10
    Preprints | 2016
    Dzuba VA; Berengut J; Harabati C; Flambaum VV, 2016, Combining configuration interaction with perturbation theory for atoms with large number of valence electrons, , http://dx.doi.org/10.48550/arxiv.1611.00425
    Preprints | 2016
    Ginges JSM; Berengut JC, 2016, Atomic many-body effects and Lamb shifts in alkali metals, , http://dx.doi.org/10.48550/arxiv.1603.09116
    Preprints | 2016
    Harabati C; Berengut JC; Flambaum VV; Dzuba VA, 2016, Electron recombination with tungsten ions with open f-shells, , http://dx.doi.org/10.48550/arxiv.1608.07932
    Preprints | 2016
    Shi C; Gebert F; Gorges C; Kaufmann S; Nörtershäuser W; Sahoo BK; Surzhykov A; Yerokhin VA; Berengut JC; Wolf F; Heip JC; Schmidt PO, 2016, Unexpectedly large difference of the electron density at the nucleus in the 4p $^2$P$_{1/2,3/2}$ fine-structure doublet of Ca$^+$, , http://dx.doi.org/10.48550/arxiv.1608.07572
    Preprints | 2016
    Torretti F; Windberger A; Ryabtsev A; Dobrodey S; Bekker H; Ubachs W; Hoekstra R; Kahl EV; Berengut JC; López-Urrutia JRC; Versolato OO, 2016, Optical spectroscopy of complex open 4$d$-shell ions Sn$^{7+}$-Sn$^{10+}$, , http://dx.doi.org/10.48550/arxiv.1612.00747
    Conference Papers | 2015
    Berengut JC; Flambaum VV; Dzuba VA; Gribakin GF; Harabati C; Kozlov MG, 2015, 'Electron recombination with multicharged ions via chaotic many-electron states', in Journal of Physics: Conference Series, http://dx.doi.org/10.1088/1742-6596/635/5/052029
    Preprints | 2015
    Berengut JC; Harabati C; Dzuba VA; Flambaum VV; Gribakin GF, 2015, Level-resolved quantum statistical theory of electron capture into many-electron compound resonances in highly charged ions, , http://dx.doi.org/10.48550/arxiv.1511.01221
    Conference Papers | 2015
    Bromley MWJ; Grunefeld SJ; Rossi JM; Berengut JC; Tang LY; Jiang J; Cheng Y; Mitroy J, 2015, 'Complex polarisabilities and hyperpolarisabilities of atoms', in Journal of Physics: Conference Series, http://dx.doi.org/10.1088/1742-6596/635/9/092078
    Conference Papers | 2015
    Flambaum VV; Chin C; Berengut J, 2015, 'Enhancement of the effects of space-time variation of the fundamental constants in collisions of cold atoms near Feshbach resonances', in Journal of Physics: Conference Series, http://dx.doi.org/10.1088/1742-6596/635/2/022016
    Preprints | 2015
    Gebert F; Wan Y; Wolf F; Angstmann CN; Berengut JC; Schmidt PO, 2015, Precision isotope shift measurements in Ca$^+$ using highly sensitive detection schemes, , http://dx.doi.org/10.48550/arxiv.1504.03139
    Preprints | 2015
    Ginges JSM; Berengut JC, 2015, QED radiative corrections and many-body effects in atoms: vacuum polarization and binding energy shifts in alkali metals, , http://dx.doi.org/10.48550/arxiv.1511.01459
    Conference Papers | 2014
    Preval SP; Barstow MA; Holberg JB; Barrow JD; Berengut JC; Webb JK; Dougan D; Hu J, 2014, 'Do the Constants of Nature Couple to Strong Gravitational Fields?', in Dufour P; Bergeron P; Fontaine G (eds.), 19TH EUROPEAN WORKSHOP ON WHITE DWARFS, ASTRONOMICAL SOC PACIFIC, CANADA, Univ Montreal, Montreal, pp. 415 - 418, presented at 19th European Workshop on White Dwarfs, CANADA, Univ Montreal, Montreal, 11 August 2014 - 15 August 2014, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000369565800080&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1
    Preprints | 2014
    Preval SP; Barstow MA; Holberg JB; Barrow JD; Berengut JC; Webb JK; Dougan D; Hu J, 2014, Do the constants of nature couple to strong gravitational fields?, , http://dx.doi.org/10.48550/arxiv.1410.0809
    Preprints | 2013
    Berengut JC; Epelbaum E; Flambaum VV; Hanhart C; Meißner U-G; Nebreda J; Peláez JR, 2013, Varying the light quark mass: impact on the nuclear force and Big Bang nucleosynthesis, , http://dx.doi.org/10.48550/arxiv.1301.1738
    Preprints | 2013
    Berengut JC; Flambaum VV; Ong A; Webb JK; Barrow JD; Barstow MA; Preval SP; Holberg JB, 2013, Limits on the dependence of the fine-structure constant on gravitational potential from white-dwarf spectra, , http://dx.doi.org/10.48550/arxiv.1305.1337
    Preprints | 2013
    Gossel GH; Berengut JC; Flambaum VV; Gribakin GF, 2013, Dense spectrum of resonances and spin-1/2 particle capture in a near-black-hole metric, , http://dx.doi.org/10.48550/arxiv.1305.4209
    Preprints | 2013
    Gossel GH; Berengut JC; Flambaum VV, 2013, Resonance scattering and the passage to bound states in the field of near-black-hole objects, , http://dx.doi.org/10.48550/arxiv.1308.6426
    Preprints | 2013
    Murphy MT; Berengut JC, 2013, Laboratory atomic transition data for precise optical quasar absorption spectroscopy, , http://dx.doi.org/10.48550/arxiv.1311.2949
    Preprints | 2012
    Berengut JC; Dzuba VA; Flambaum VV; Ong A, 2012, Highly charged ions with E1, M1, and E2 transitions within laser range, , http://dx.doi.org/10.48550/arxiv.1206.0534
    Preprints | 2012
    Berengut JC; Dzuba VA; Flambaum VV; Ong A, 2012, Optical transitions in highly-charged californium ions with high sensitivity to variation of the fine-structure constant, , http://dx.doi.org/10.48550/arxiv.1204.0603
    Preprints | 2012
    Berengut JC; Kava EM; Flambaum VV, 2012, A reanalysis of quasar absorption spectra results suggesting a spatial gradient in values of the fine-structure constant, , http://dx.doi.org/10.48550/arxiv.1203.5891
    Preprints | 2012
    Spencer-Smith AF; Gossel GH; Berengut JC; Flambaum VV, 2012, Bound states of spin-half particles in a static gravitational field close to the black hole field, , http://dx.doi.org/10.48550/arxiv.1208.4223
    Preprints | 2012
    Stadnik YV; Gossel GH; Flambaum VV; Berengut JC, 2012, Resonant scattering of light in a near-black-hole metric, , http://dx.doi.org/10.48550/arxiv.1210.7049
    Conference Papers | 2011
    Berengut J; Dzuba V; Flambaum VV; Ong A, 2011, 'Optical Clocks Using Highly Charged Ions to Probe Variation of the Fine-Structure Constant', in Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011, OSA, presented at International Quantum Electronics Conference, http://dx.doi.org/10.1364/iqec.2011.i779
    Conference Papers | 2011
    Berengut J; Flambaum V, 2011, 'Enhanced Laboratory Searches for Variation of Fundamental Constants', in Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011, OSA, presented at International Quantum Electronics Conference, http://dx.doi.org/10.1364/iqec.2011.i775
    Conference Papers | 2011
    Berengut JC; Dzuba VA; Flambaum V; King J; Kozlov MG; Murphy MT; Webb JK, 2011, 'Atomic Transition Frequencies Isotope Shifts and Sensitivity to Variation of the Fine Structure Constants for Studies of Quasar Absorption Spectra', in Martins C; Molaro P (ed.), Springer, Netherlands, pp. 9 - 16, http://dx.doi.org/10.1007/978-3-642-19397-2_2
    Preprints | 2011
    Berengut JC; Dzuba VA; Flambaum VV; Ong A, 2011, Hole transitions in multiply-charged ions for precision laser spectroscopy and searching for alpha-variation, , http://dx.doi.org/10.48550/arxiv.1103.2823
    Preprints | 2011
    Berengut JC; Dzuba VA; Flambaum VV, 2011, Transitions in Zr, Hf, Ta, W, Re, Hg, Ac and U ions with high sensitivity to variation of the fine-structure constant, , http://dx.doi.org/10.48550/arxiv.1109.4702
    Conference Papers | 2011
    Berengut JC; Flambaum V; Dmitriev VF, 2011, 'Quark-mass variation effect on big bang nucleosynthesis', in Journal of Physics: Conference Series 264, Institute of Physics, UK, pp. 012043-1 - 012043-4, presented at Nuclear Physics in Astrophysics V, Ellat, Israel, 03 April 2011 - 08 April 2011, http://dx.doi.org/10.1088/1742-6596/337/1/012043
    Preprints | 2011
    Berengut JC; Flambaum VV; Kava EM, 2011, Search for variation of fundamental constants and violations of fundamental symmetries using isotope comparisons, , http://dx.doi.org/10.48550/arxiv.1109.1893
    Preprints | 2011
    Curran SJ; Tanna A; Koch FE; Berengut JC; Webb JK; Stark AA; Flambaum VV, 2011, Measuring space-time variation of the fundamental constants with redshifted submillimetre transitions of neutral carbon, , http://dx.doi.org/10.48550/arxiv.1108.0976
    Preprints | 2010
    Berengut JC; Dzuba VA; Flambaum VV; King JA; Kozlov MG; Murphy MT; Webb JK, 2010, Atomic transition frequencies, isotope shifts, and sensitivity to variation of the fine structure constant for studies of quasar absorption spectra, , http://dx.doi.org/10.48550/arxiv.1011.4136
    Preprints | 2010
    Berengut JC; Dzuba VA; Flambaum VV, 2010, Enhanced laboratory sensitivity to variation of the fine-structure constant using highly-charged ions, , http://dx.doi.org/10.48550/arxiv.1007.1068
    Conference Papers | 2010
    Berengut JC; Flambaum V, 2010, 'Astronomical and laboratory searches for space-time variation of fundamental constants', in Journal of Physics: Conference Series 264, Institute of Physics, UK, pp. 012010-1 - 012010-9, presented at 22nd International Conference on Atomic Physics, Cairns, QLD, Austraalia, 25 July 2010 - 30 July 2010, http://dx.doi.org/10.1088/1742-6596/264/1/012010
    Conference Papers | 2010
    Berengut JC; Flambaum V, 2010, 'Manifestations of Space-Time Variation of Coupling Constants and Fundamental Masses', in Baaquie BE; Chan AH; Chang N-P; Cheong SA; Kweek LC; Oh CH (eds.), World Scientific Publishing Co Pte Ltd, Singapore, pp. 383 - 396, Nanyang Technological Univ, Singapore, 24 February 2010 - 26 February 2010
    Preprints | 2010
    Gossel GH; Berengut JC; Flambaum VV, 2010, Energy levels of a scalar particle in a static gravitational field close to the black hole limit, , http://dx.doi.org/10.48550/arxiv.1006.5541
    Preprints | 2010
    Lybarger WE; Berengut JC; Chiaverini J, 2010, Precision measurement of the 5 2S1/2 - 4 2D5/2 quadrupole transition isotope shift between 88Sr+ and 86Sr+, , http://dx.doi.org/10.48550/arxiv.1009.0883
    Preprints | 2009
    Berengut JC; Dzuba VA; Flambaum VV; Porsev SG, 2009, A proposed experimental method to determine $\alpha$-sensitivity of splitting between ground and 7.6 eV isomeric states in Th-229, , http://dx.doi.org/10.48550/arxiv.0903.1891
    Preprints | 2009
    Berengut JC; Flambaum VV; King-Lacroix J, 2009, Magnetic blackbody shift of hyperfine transitions for atomic clocks, , http://dx.doi.org/10.48550/arxiv.0910.2064
    Conference Papers | 2009
    Berengut JC; Flambaum VV, 2009, 'Laboratory spectroscopy and the search for variation of the fine-structure constant', in Marinova K; Markov B; Blaszczak Z (eds.), LASER 2009: RECENT ACHIEVEMENTS AND FUTURE PROSPECTS, SPRINGER-VERLAG BERLIN, POLAND, Poznan, pp. 269 - 278, presented at 8th International Workshop on Application of Lasers and Storage Devices in Atomic Nuclei Research - Recent Achievements and Future Prospects (LASER 2009), POLAND, Poznan, 22 June 2009 - 25 June 2009, http://dx.doi.org/10.1007/s10751-009-0146-y
    Conference Papers | 2008
    Flambaum V; Berengut JC, 2008, 'Variation of Fundamental Constants from the Big Bang to Atomic Clocks: Theory and Observations', in Proceedings of the 7th Symposium Frequency Standards and Metrology, World Scientific Publ Co Pte Ltd, Singapore, presented at The Symposium on Frequency Standards and Metrology, Pacific Grove, California, USA, 05 October 2008 - 11 October 2008
    Preprints | 2006
    Berengut JC; Loch SD; Ballance CP; Pindzola MS, 2006, Electron-impact ionization of the metastable excited states of Li+, , http://dx.doi.org/10.48550/arxiv.physics/0612188
    Preprints | 2004
    Berengut JC; Dzuba VA; Flambaum VV; Kozlov MG; Marchenko MV; Murphy MT; Webb JK, 2004, Laboratory spectroscopy and the search for space-time variation of the fine structure constant using QSO spectra, , http://dx.doi.org/10.48550/arxiv.physics/0408017
    Preprints | 2004
    Berengut JC; Dzuba VA; Flambaum VV; Marchenko MV, 2004, Calculation of the dependence of transition frequencies on the fine structure constant and the search for variation of alpha in QSO spectra, , http://dx.doi.org/10.48550/arxiv.astro-ph/0408542
    Preprints | 2004
    Berengut JC; Dzuba VA; Flambaum VV; Marchenko MV, 2004, The alpha-dependence of transition frequencies for some ions of Ti, Mn, Na, C, and O, and the search for variation of the fine structure constant, , http://dx.doi.org/10.48550/arxiv.physics/0404008
    Preprints | 2004
    Kozlov MG; Korol VA; Berengut JC; Dzuba VA; Flambaum VV, 2004, Space-time variation of the fine structure constant and evolution of isotope abundances, http://dx.doi.org/10.1103/PhysRevA.70.062108
    Preprints | 2003
    Berengut JC; Dzuba VA; Flambaum VV; Kozlov MG, 2003, Configuration interaction calculation for the isotope shift in Mg I, , http://dx.doi.org/10.48550/arxiv.physics/0312137
    Preprints | 2003
    Berengut JC; Dzuba VA; Flambaum VV, 2003, Isotope shift calculations for atoms with one valence electron, , http://dx.doi.org/10.48550/arxiv.physics/0305068
    Preprints | 1999
    Berengut JC; Flambaum VV; Gribakin GF, 1999, Unusual statistics of interference effects in neutron scattering from compound nuclei, , http://dx.doi.org/10.48550/arxiv.nucl-th/9912010

  • 2019 ARC Discovery Project “Atomic theory and search for new elementary particles.”
  • 2018 Alexander von Humboldt Fellowship for Experienced Researchers
  • 2014 UNSW Goldstar Award
  • 2013 UNSW MREII “Computational research infrastructure for theoretical and astrophysical data analysis and modeling.”
  • 2012 ARC DECRA “Are the laws of physics changing? New methods for detecting variations in the fundamental constants.”
  • 2011 ARC Discovery Project “Fundamental Physics in Distant Galaxies”
  • 2008 Vice Chancellor's Postdoctoral Research Fellowship

  • 2018 Alexander von Humboldt Fellowship for Experienced Researchers
  • 2016 UNSW Rising Star
  • 2013 AIPS Young Tall Poppy Science Award
  • The 2012 Australian Museum Eureka Prize for Scientific Research
  • 2012 – 2014 ARC Discovery Early Career Researcher Award
  • 2002 – 2005 Gordon Godfrey Scholarship for Theoretical Physics
  • 2000 University Medal: Physics with Computer Science

I am a theoretical physicist working mainly in atomic physics, with crossover to nuclear physics, astrophysics, and cosmology. Much of my work is dedicated to low-energy searches for physics beyond the Standard Model. This field uses precision experiments in atoms and molecules to search for new particles and forces, test whether the fundamental constants change over time, and measure violations of fundamental symmetries. It complements high-energy experiments such as the Large Hadron Collider.

As a quantum mechanic, I am also interested in atomic many-body theory and the cross-over to many-body quantum chaos. I developed the atomic many-body code AMBiT, which has been instrumental in determining properties of atomic transitions such as isotope shift and sensitivity to variation of fundamental constants. It also enabled the discovery of optical transitions in highly-charged ions, which are being used to develop atomic clocks of extremely high accuracy and high sensitivity to potential variations in the fine-structure constant.

Research topics include

  • astrophysical and laboratory searches for variations in the fundamental constants
  • searches for physics beyond the Standard Model
  • quantum mechanics around black holes
  • development of new ultra-precise atomic clocks based on highly charged ions
  • nuclear clocks and electronic-bridge processes
  • atomic and nuclear many-body theory
  • many-body quantum chaos
  • isotope shift in atomic spectra and its application to searches for new physics
  • spectra of superheavy elements

  • Invited lecturer at Summer School “Search for new physics with low-energy precision tests”, University of Groningen, Netherlands, 2017
  • Member of Merit Allocation Committee for the National Computing Infrastructure (NCMAC), 2016 – 2017
  • Conference session organiser (PT4), Marcel Grossman Meeting (MG14), Rome, Italy, 2015

My Teaching

  • School of Physics Honours Director (since 2019)
  • Honours Journal Club convenor (since 2019)
  • 4th year Quantum Mechanics (Honours) (since 2019)
  • 3rd year Quantum Physics convenor (since 2015)
  • 3rd year Thermodynamics and Statistical Mechanics lecturer (since 2022)
  • Physics Curriculum Review Committee (2014 – 2015); Honours Review Committee (2017)
  • 3rd year Electrodynamics (2017)
  • 3rd year Nuclear Physics (2010 – 2016)
  • 3rd year Computational Physics (2015)
  • 2nd year Electromagnetism (2009, 2010)
  • Physics 1A (2017)