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Dr Ludwik Kranz

Dr Ludwik Kranz

Research Staff
Science
School of Physics

Dr Kranz is a Research Fellow specialising in nanotechnology, quantum technologies and atomic-scale engineering. After obtaining his Bachelor and Master Degrees at top European institutions, he completed a PhD at the UNSW. Ludwik is currently working jointly with the team at Silicon Quantum Computing and at ARC Centre for Quantum Computation and Communication Technology. His current work is focused on the development and optimisation of multi-qubit devices based on atomically precise placement of dopants in silicon.
E-mail
l.kranz@unsw.edu.au
  • Journal articles | 2025
    Thorvaldson I; Poulos D; Moehle CM; Misha SH; Edlbauer H; Reiner J; Geng H; Voisin B; Jones MT; Donnelly MB; Peña LF; Hill CD; Myers CR; Keizer JG; Chung Y; Gorman SK; Kranz L; Simmons MY, 2025, 'Grover’s algorithm in a four-qubit silicon processor above the fault-tolerant threshold', Nature Nanotechnology, http://dx.doi.org/10.1038/s41565-024-01853-5
    Journal articles | 2024
    Hsueh YL; Keith D; Chung Y; Gorman SK; Kranz L; Monir S; Kembrey Z; Keizer JG; Rahman R; Simmons MY, 2024, 'Engineering Spin-Orbit Interactions in Silicon Qubits at the Atomic-Scale', Advanced Materials, 36, http://dx.doi.org/10.1002/adma.202312736
    Journal articles | 2024
    Kranz L; Osika EN; Monir S; Hsueh YL; Fricke L; Hile SJ; Chung Y; Keizer JG; Rahman R; Simmons MY, 2024, 'Exploiting Atomic Control to Show When Atoms Become Molecules', Advanced Functional Materials, 34, http://dx.doi.org/10.1002/adfm.202307285
    Journal articles | 2024
    Monir S; Osika EN; Gorman SK; Thorvaldson I; Hsueh YL; Macha P; Kranz L; Reiner J; Simmons MY; Rahman R, 2024, 'Impact of measurement backaction on nuclear spin qubits in silicon', Physical Review B, 109, http://dx.doi.org/10.1103/PhysRevB.109.035157
    Journal articles | 2024
    Reiner J; Chung Y; Misha SH; Lehner C; Moehle C; Poulos D; Monir S; Charde KJ; Macha P; Kranz L; Thorvaldson I; Thorgrimsson B; Keith D; Hsueh YL; Rahman R; Gorman SK; Keizer JG; Simmons MY, 2024, 'High-fidelity initialization and control of electron and nuclear spins in a four-qubit register', Nature Nanotechnology, 19, pp. 605 - 611, http://dx.doi.org/10.1038/s41565-023-01596-9
    Journal articles | 2024
    Tranter AD; Kranz L; Sutherland S; Keizer JG; Gorman SK; Buchler BC; Simmons MY, 2024, 'Machine Learning-Assisted Precision Manufacturing of Atom Qubits in Silicon', ACS Nano, http://dx.doi.org/10.1021/acsnano.4c00080
    Journal articles | 2023
    Hsueh YL; Kranz L; Keith D; Monir S; Chung Y; Gorman SK; Rahman R; Simmons MY, 2023, 'Hyperfine-mediated spin relaxation in donor-atom qubits in silicon', Physical Review Research, 5, http://dx.doi.org/10.1103/PhysRevResearch.5.023043
    Journal articles | 2023
    Jones MT; Monir MS; Krauth FN; Macha P; Hsueh YL; Worrall A; Keizer JG; Kranz L; Gorman SK; Chung Y; Rahman R; Simmons MY, 2023, 'Atomic Engineering of Molecular Qubits for High-Speed, High-Fidelity Single Qubit Gates', ACS Nano, 17, pp. 22601 - 22610, http://dx.doi.org/10.1021/acsnano.3c06668
    Journal articles | 2023
    Kranz L; Gorman SK; Thorgrimsson B; Monir S; He Y; Keith D; Charde K; Keizer JG; Rahman R; Simmons MY, 2023, 'The Use of Exchange Coupled Atom Qubits as Atomic-Scale Magnetic Field Sensors', Advanced Materials, 35, http://dx.doi.org/10.1002/adma.202201625
    Journal articles | 2023
    Kranz L; Gorman SK; Thorgrimsson B; Monir S; He Y; Keith D; Charde K; Keizer JG; Rahman R; Simmons MY, 2023, 'The Use of Exchange Coupled Atom Qubits as Atomic‐Scale Magnetic Field Sensors (Adv. Mater. 6/2023)', Advanced Materials, 35, http://dx.doi.org/10.1002/adma.202370039
    Journal articles | 2023
    Kranz L; Roche S; Gorman SK; Keizer JG; Simmons MY, 2023, 'High-Fidelity CNOT Gate for Donor Electron Spin Qubits in Silicon', Physical Review Applied, 19, http://dx.doi.org/10.1103/PhysRevApplied.19.024068
    Journal articles | 2022
    Keith D; Chung Y; Kranz L; Thorgrimsson B; Gorman SK; Simmons MY, 2022, 'Ramped measurement technique for robust high-fidelity spin qubit readout', Science Advances, 8, http://dx.doi.org/10.1126/sciadv.abq0455
    Journal articles | 2022
    Keith D; Gorman SK; He Y; Kranz L; Simmons MY, 2022, 'Impact of charge noise on electron exchange interactions in semiconductors', npj Quantum Information, 8, http://dx.doi.org/10.1038/s41534-022-00523-5
    Journal articles | 2022
    Keith D; Gorman SK; Kranz L; He Y; Keizer JG; Broome MA; Simmons MY, 2022, 'Erratum: Benchmarking high fidelity single-shot readout of semiconductor qubits (New J. Phys. (2019) 21 (063011) DOI: 10.1088/1367-2630/ab242c/meta)', New Journal of Physics, 24, http://dx.doi.org/10.1088/1367-2630/ac7479
    Journal articles | 2021
    Fricke L; Hile SJ; Kranz L; Chung Y; He Y; Pakkiam P; House MG; Keizer JG; Simmons MY, 2021, 'Coherent control of a donor-molecule electron spin qubit in silicon', Nature Communications, 12, http://dx.doi.org/10.1038/s41467-021-23662-3
    Journal articles | 2020
    Kranz L; Gorman SK; Thorgrimsson B; He Y; Keith D; Keizer JG; Simmons MY, 2020, 'Exploiting a Single-Crystal Environment to Minimize the Charge Noise on Qubits in Silicon', Advanced Materials, 32, http://dx.doi.org/10.1002/adma.202003361
    Journal articles | 2020
    Kranz L; Gorman SK; Thorgrimsson B; He Y; Keith D; Keizer JG; Simmons MY, 2020, 'Quantum Computing: Exploiting a Single‐Crystal Environment to Minimize the Charge Noise on Qubits in Silicon (Adv. Mater. 40/2020)', Advanced Materials, 32, http://dx.doi.org/10.1002/adma.202070298
    Journal articles | 2019
    He Y; Gorman SK; Keith D; Kranz L; Keizer JG; Simmons MY, 2019, 'A two-qubit gate between phosphorus donor electrons in silicon', Nature, 571, pp. 371 - 375, http://dx.doi.org/10.1038/s41586-019-1381-2
    Journal articles | 2019
    Keith D; Gorman SK; Kranz L; He Y; Keizer JG; Broome MA; Simmons MY, 2019, 'Benchmarking high fidelity single-shot readout of semiconductor qubits', New Journal of Physics, 21, pp. 063011, http://dx.doi.org/10.1088/1367-2630/ab242c
  • Preprints | 2024
    Thorvaldson I; Poulos D; Moehle CM; Misha SH; Edlbauer H; Reiner J; Geng H; Voisin B; Jones MT; Donnelly MB; Pena LF; Hill CD; Myers CR; Keizer JG; Chung Y; Gorman SK; Kranz L; Simmons MY, 2024, Grover's algorithm in a four-qubit silicon processor above the fault-tolerant threshold, http://dx.doi.org/10.1038/s41565-024-01853-5
    Preprints | 2023
    Monir S; Osika EN; Gorman SK; Thorvaldson I; Hsueh Y-L; Macha P; Kranz L; Reiner J; Simmons MY; Rahman R, 2023, Impact of measurement backaction on nuclear spin qubits in silicon, http://dx.doi.org/10.48550/arxiv.2310.12656
    Preprints | 2018
    Keith D; Gorman SK; Kranz L; He Y; Keizer JG; Broome MA; Simmons MY, 2018, Benchmarking high fidelity single-shot readout of semiconductor qubits, http://dx.doi.org/10.48550/arxiv.1811.03630