Dr Kok Wai   Chan
Senior Research Fellow

Dr Kok Wai Chan

 University of New South Wales, Sydney Australia 

  • Doctor of Philosophy, Electrical Engineering 2012 
  • Bachelor's Degree, Electrical Engineering (1st Class Honours) 2008 
Engineering
Sch: Electrical Eng & Telecom

Senior Research Fellow at The University of New South Wales, Sydney Australia (May 2021 – current)

  • I am currently working on the implementation of spin-photon coupling in a silicon quantum dot qubit devices with on-chip fabricated superconducting microwave resonators to enable distant qubit coupling and realization of scaled-up quantum processor.

Head of Quantum Device Fabrication at IQM Quantum Computers, Finland (Jun 2019 – March 2021)

  • I led a team of quantum engineers, focusing on the design and fabrication of scalable superconducting quantum computing with circuit refrigeration for qubit reset and utilizes 3D integration technologies. 

Senior Scientist at Microsoft Quantum, Sydney Australia (Jun 2018 – May 2019) 

Research Fellow at The University of New South Wales, Sydney Australia (Oct 2015 – Jun 2018) 

  • My research focused on the design and development of silicon quantum dot architecture with fabrication process suitable for scalable quantum computing. This architecture is based on metal—oxide—semiconductor compatible aluminum multi-layer gating technology. I played an integral role in this novel process in Prof. Andrew Dzurak’s group. I have fabricated devices which meet the experiment requirement for current state-of-the-art two-qubit logic gates operation and facilitated the first demonstration of full two-qubit state tomography and randomized benchmarking in silicon quantum dot spin qubit platform, published in Nature

Research Fellow at The National University of Singapore, Singapore (Oct 2012 – Sep 2015) 

  • I assisted the Director, Prof. Antonio Castro Neto to establish the Micro and Nano Fabrication Facilities under the National University of Singapore and Singapore National Research Foundation (NRF) start-up grants, worth S$40 million. The cleanroom facility, named CA2DM Micro- and Nanofabrication Facilities comprise a state-of-the-art 800 sqm Class 100 and 1000 areas dedicated to 2D materials research such as graphene. I established and supervised a competent cleanroom operation and management team. I fabricated graphene bolometer devices which have produced results published in Nature

Postdoctoral Research Fellow at The University of New South Wales, Sydney Australia (Sep 2011 – Jul 2012)

Location
Newton Building, University of New South Wales

Publications

  • Journal articles | 2021
    Dr Kok Wai Chan
    Yoneda J; Huang W; Feng M; Yang CH; Chan KW; Tanttu T; Gilbert W; Leon RCC; Hudson FE; Itoh KM; Morello A; Bartlett SD; Laucht A; Saraiva A; Dzurak AS, 2021, 'Coherent spin qubit transport in silicon', Nature Communications, vol. 12, pp. 4114, http://dx.doi.org/10.1038/s41467-021-24371-7
    Journal articles | 2021
    Dr Kok Wai Chan
    Chan KW; Sahasrabudhe H; Huang W; Wang Y; Yang HC; Veldhorst M; Hwang JCC; Mohiyaddin FA; Hudson FE; Itoh KM; Saraiva A; Morello A; Laucht A; Rahman R; Dzurak AS, 2021, 'Exchange Coupling in a Linear Chain of Three Quantum-Dot Spin Qubits in Silicon', Nano Letters, vol. 21, pp. 1517 - 1522, http://dx.doi.org/10.1021/acs.nanolett.0c04771
    Journal articles | 2020
    Dr Kok Wai Chan
    Kokkoniemi R; Girard JP; Hazra D; Laitinen A; Govenius J; Lake RE; Sallinen I; Vesterinen V; Partanen M; Tan JY; Chan KW; Tan KY; Hakonen P; Möttönen M, 2020, 'Bolometer operating at the threshold for circuit quantum electrodynamics', Nature, vol. 586, pp. 47 - 51, http://dx.doi.org/10.1038/s41586-020-2753-3
    Journal articles | 2020
    Dr Kok Wai Chan
    Darulová J; Pauka SJ; Wiebe N; Chan KW; Gardener GC; Manfra MJ; Cassidy MC; Troyer M, 2020, 'Autonomous Tuning and Charge-State Detection of Gate-Defined Quantum Dots', Physical Review Applied, vol. 13, http://dx.doi.org/10.1103/PhysRevApplied.13.054005
    Journal articles | 2020
    Dr Kok Wai Chan
    Yang CH; Leon RCC; Hwang JCC; Saraiva A; Tanttu T; Huang W; Camirand Lemyre J; Chan KW; Tan KY; Hudson FE; Itoh KM; Morello A; Pioro-Ladrière M; Laucht A; Dzurak AS, 2020, 'Operation of a silicon quantum processor unit cell above one kelvin', Nature, vol. 580, pp. 350 - 354, http://dx.doi.org/10.1038/s41586-020-2171-6
    Journal articles | 2020
    Dr Kok Wai Chan
    Hensen B; Wei Huang W; Yang CH; Wai Chan K; Yoneda J; Tanttu T; Hudson FE; Laucht A; Itoh KM; Ladd TD; Morello A; Dzurak AS, 2020, 'A silicon quantum-dot-coupled nuclear spin qubit', Nature Nanotechnology, vol. 15, pp. 13 - 17, http://dx.doi.org/10.1038/s41565-019-0587-7
    Journal articles | 2020
    Dr Kok Wai Chan
    Leon RCC; Yang CH; Hwang JCC; Lemyre JC; Tanttu T; Huang W; Chan KW; Tan KY; Hudson FE; Itoh KM; Morello A; Laucht A; Pioro-Ladrière M; Saraiva A; Dzurak AS, 2020, 'Coherent spin control of s-, p-, d- and f-electrons in a silicon quantum dot', Nature Communications, vol. 11, pp. 797, http://dx.doi.org/10.1038/s41467-019-14053-w
    Journal articles | 2019
    Dr Kok Wai Chan
    Tanttu T; Hensen B; Chan KW; Yang CH; Huang WW; Fogarty M; Hudson F; Itoh K; Culcer D; Laucht A; Morello A; Dzurak A, 2019, 'Controlling Spin-Orbit Interactions in Silicon Quantum Dots Using Magnetic Field Direction', Physical Review X, vol. 9, http://dx.doi.org/10.1103/PhysRevX.9.021028
    Journal articles | 2019
    Dr Kok Wai Chan
    Jenei M; Potanina E; Zhao R; Tan KY; Rossi A; Tanttu T; Chan KW; Sevriuk V; Möttönen M; Dzurak A, 2019, 'Waiting time distributions in a two-level fluctuator coupled to a superconducting charge detector', Physical Review Research, vol. 1, http://dx.doi.org/10.1103/physrevresearch.1.033163
    Journal articles | 2019
    Dr Kok Wai Chan
    Zhao R; Tanttu T; Tan KY; Hensen B; Chan KW; Hwang JCC; Leon RCC; Yang CH; Gilbert W; Hudson FE; Itoh KM; Kiselev AA; Ladd TD; Morello A; Laucht A; Dzurak AS, 2019, 'Single-spin qubits in isotopically enriched silicon at low magnetic field', Nature Communications, vol. 10, http://dx.doi.org/10.1038/s41467-019-13416-7
    Journal articles | 2019
    Dr Kok Wai Chan
    Yang CH; Chan KW; Harper R; Huang W; Evans T; Hwang JCC; Hensen B; Laucht A; Tanttu T; Hudson FE; Flammia ST; Itoh KM; Morello A; Bartlett SD; Dzurak AS, 2019, 'Silicon qubit fidelities approaching incoherent noise limits via pulse engineering', Nature Electronics, vol. 2, pp. 151 - 158, http://dx.doi.org/10.1038/s41928-019-0234-1
    Journal articles | 2019
    Dr Kok Wai Chan
    Huang W; Yang CH; Chan KW; Tanttu T; Hensen B; Leon RCC; Fogarty MA; Hwang JCC; Hudson FE; Itoh KM; Morello A; Laucht A; Dzurak AS, 2019, 'Fidelity benchmarks for two-qubit gates in silicon', Nature, vol. 569, pp. 532 - 536, http://dx.doi.org/10.1038/s41586-019-1197-0
    Journal articles | 2018
    Dr Kok Wai Chan
    Fogarty MA; Chan KW; Hensen B; Huang W; Tanttu T; Yang CH; Laucht A; Veldhorst M; Hudson FE; Itoh KM; Culcer D; Ladd TD; Morello A; Dzurak AS, 2018, 'Integrated silicon qubit platform with single-spin addressability, exchange control and single-shot singlet-triplet readout', Nature Communications, vol. 9, pp. 4370, http://dx.doi.org/10.1038/s41467-018-06039-x
    Journal articles | 2018
    Dr Kok Wai Chan
    Ferdous R; Chan KW; Veldhorst M; Hwang JCC; Yang CH; Sahasrabudhe H; Klimeck G; Morello A; Dzurak AS; Rahman R, 2018, 'Interface-induced spin-orbit interaction in silicon quantum dots and prospects for scalability', Physical Review B, vol. 97, http://dx.doi.org/10.1103/PhysRevB.97.241401
    Journal articles | 2018
    Dr Kok Wai Chan
    Chan KW; Huang W; Yang CH; Hwang JCC; Hensen B; Tanttu T; Hudson FE; Itoh KM; Laucht A; Morello A; Dzurak AS, 2018, 'Assessment of a Silicon Quantum Dot Spin Qubit Environment via Noise Spectroscopy', Physical Review Applied, vol. 10, http://dx.doi.org/10.1103/PhysRevApplied.10.044017
    Journal articles | 2016
    Dr Kok Wai Chan
    Tanttu T; Rossi A; Tan KY; Mäkinen A; Chan KW; Dzurak AS; Möttönen M, 2016, 'Three-waveform bidirectional pumping of single electrons with a silicon quantum dot', Scientific Reports, vol. 6, http://dx.doi.org/10.1038/srep36381
    Journal articles | 2015
    Dr Kok Wai Chan
    Tanttu T; Rossi A; Tan KY; Huhtinen KE; Chan KW; Möttönen M; Dzurak AS, 2015, 'Electron counting in a silicon single-electron pump', New Journal of Physics, vol. 17, http://dx.doi.org/10.1088/1367-2630/17/10/103030
    Journal articles | 2014
    Dr Kok Wai Chan
    Rossi A; Tanttu T; Tan KY; Iisakka I; Zhao R; Chan KW; Tettamanzi GC; Rogge S; Dzurak AS; Möttönen M, 2014, 'An accurate single-electron pump based on a highly tunable silicon quantum dot', Nano Letters, vol. 14, pp. 3405 - 3411, http://dx.doi.org/10.1021/nl500927q
    Journal articles | 2011
    Dr Kok Wai Chan
    Chan KW; Mottonen M; Kemppinen A; Lai ; Tan K; Lim WH; Dzurak A, 2011, 'Single-electron shuttle based on a silicon quantum dot', Applied Physics Letters, vol. 98, pp. Article number: 212103, http://dx.doi.org/10.1063/1.3593491
    Journal articles | 2010
    Dr Kok Wai Chan
    Tan K; Chan KW; Mottonen M; Morello A; Yang C; Van donkeelar J; Alves A; Pirkkalainen J-M; Jamieson DN; Clark RG; Dzurak A, 2010, 'Transport Spectroscopy of Single Phosphorus Donors in a Silicon Nanoscale Transistor', Nano Letters, vol. 10, pp. 11 - 15, http://dx.doi.org/10.1021/nl901635j
    Journal articles | 2010
    Dr Kok Wai Chan
    Morello A; Pla J; Zwanenburg FA; Chan KW; Tan K; Huebl H; Mottonen M; Nugroho C; Yang C; Van donkeelar J; Alves A; Jamieson DN; Escott CC; Hollenberg L; Clark RG; Dzurak A, 2010, 'Single-shot readout of an electron spin in silicon', Nature, vol. 467, pp. 687 - 691, http://dx.doi.org/10.1038/nature09392
    Journal articles | 2009
    Dr Kok Wai Chan
    Lim WH; Zwanenburg FA; Huebl H; Mottonen M; Chan KW; Morello A; Dzurak A, 2009, 'Observation of the single-electron regime in a highly tunable silicon quantum dot', Applied Physics Letters, vol. 95, pp. 242102-1 - 242102-3, http://dx.doi.org/10.1063/1.3272858
    Journal articles |
    Dr Kok Wai Chan
    Hansen I; Seedhouse AE; Chan KW; Hudson F; Itoh KM; Laucht A; Saraiva A; Yang CH; Dzurak AS, 'Implementation of the SMART protocol for global qubit control in silicon', , http://arxiv.org/abs/2108.00836v2
    Journal articles |
    Dr Kok Wai Chan
    Evans TJ; Huang W; Yoneda J; Harper R; Tanttu T; Chan KW; Hudson FE; Itoh KM; Saraiva A; Yang CH; Dzurak AS; Bartlett SD, 'Fast Bayesian tomography of a two-qubit gate set in silicon', , http://arxiv.org/abs/2107.14473v1
    Journal articles |
    Dr Kok Wai Chan
    Jenei M; Zhao R; Tan KY; Tanttu T; Chan KW; Sun Y; Sevriuk V; Hudson F; Rossi A; Dzurak A; Möttönen M, 'Superconducting charge sensor coupled to an electron layer in silicon', , http://arxiv.org/abs/1909.11976v1
  • Conference Papers | 2015
    Dr Kok Wai Chan
    Rossi A; Tanttu T; Tan KY; Zhao R; Chan KW; Iisakka I; Tettamanzi GC; Rogge S; Dzurak AS; Mottonen M, 2015, 'A silicon single-electron pump with tunable electrostatic confinement', in 2014 Silicon Nanoelectronics Workshop, SNW 2014, http://dx.doi.org/10.1109/SNW.2014.7348563
    Conference Papers | 2014
    Dr Kok Wai Chan
    Rossi A; Tanttu T; Tan KY; Zhao R; Chan KW; Iisakka I; Tettamanzi GC; Rogge S; Möttönen M; Dzurak AS, 2014, 'Effects of electrostatic confinement in a silicon single-electron pump', in CPEM Digest (Conference on Precision Electromagnetic Measurements), pp. 440 - 441, http://dx.doi.org/10.1109/CPEM.2014.6898448
    Conference Papers | 2011
    Dr Kok Wai Chan
    Lim WH; Zwanenburg FA; Yang CH; Huebl H; Möttönen M; Chan KW; Escott CC; Morello A; Dzurak AS, 2011, 'Independent control of dot occupancy and reservoir electron density in a one-electron quantum dot', in AIP Conference Proceedings, pp. 349 - 350, http://dx.doi.org/10.1063/1.3666397

Awards

Grants

Media