Scale-up Engineering Program

Building a quantum computer is a major challenge in understanding the quantum effects that we want to put to practical use for computation. Along with that we have a big challenge in designing the control and measurement electronics that are needed to operate a complex device such as a quantum computer at high frequencies and temperatures near absolute zero. Led by Co-Program Managers Dr Matthew House and Dr Arne Laucht from UNSW Sydney, the Scale-up Engineering Program focuses on developing these enabling technologies: high-sensitivity quantum measurements, control and readout multiplexing for routing information into, out of, and within the quantum processor.

People

Dr. Arne Laucht

Dr. Arne Laucht

Program Manager
Dr. Matthew G. House

Dr. Matthew G. House

Program Manager
Mr. Vikas Sewani

Mr. Vikas Sewani

PhD Student
Mr. Wister Huang

Mr. Wister Huang

PhD Student

Featured publications

Fidelity benchmarks for two-qubit gates in silicon
Fidelity benchmarks for two-qubit gates in silicon W. Huang, C. H. Yang, K. W. Chan, T. Tanttu, B. Hensen, R. C. C. Leon, M. A. Fogarty, J. C. C. Hwang, F. E. Hudson, K. M. Itoh, A. Morello, A. Laucht & A. S. Dzurak Nature, 569, 532–536 (2019)
Spin read-out in atomic qubits in an all-epitaxial three-dimensional transistor
Spin read-out in atomic qubits in an all-epitaxial three-dimensional transistor M Koch, JG Keizer, P Pakkiam, D Keith, MG. House, E Peretz & MY Simmons Nature Nanotechnology, 14, 137 (2019)
Silicon qubit fidelities approaching incoherent noise limits via pulse engineering
Silicon qubit fidelities approaching incoherent noise limits via pulse engineering C. H. Yang, K. W. Chan, R. Harper, W. Huang, T. Evans, J. C. C. Hwang, B. Hensen, A. Laucht, T. Tanttu, F. E. Hudson, S. T. Flammia, K. M. Itoh, A. Morello, S. D. Bartlett & A. S. Dzurak Nature Electronics, 2, 151–158 (2019)
Electron spin relaxation of single phosphorus donors in metal-oxide-semiconductor nanoscale devices
Electron spin relaxation of single phosphorus donors in metal-oxide-semiconductor nanoscale devices SB Tenberg, S Asaad, MT Mądzik, MAI Johnson, B Joecker, A Laucht, FE Hudson, KM Itoh, AM Jakob, BC Johnson, DN Jamieson, JC McCallum, AS Dzurak, R Joynt, A Morello Phys. Rev. B, 99, 205306 (2019)
Scalable quantum computing with ion-implanted dopant atoms in silicon
Scalable quantum computing with ion-implanted dopant atoms in silicon Morello, A, Tosi, G, Mohiyaddin, FA, Schmitt, V, Mourik, V, Botzem, T, Laucht, A, Pla, JJ, Tenberg, S, Savytskyy, R, Madzik, M, Hudson, F, Dzurak, AS, Itoh, KM, Jakob, AM, Johnson, BC, McCallum, JC, Jamieson, DN 64th IEEE Annual International Electron Devices Meeting (IEDM) (2018)
Integrated silicon qubit platform with single-spin addressability, exchange control and robust single-shot singlet-triplet readout
Integrated silicon qubit platform with single-spin addressability, exchange control and robust single-shot singlet-triplet readout MA Fogarty, KW Chan, B Hensen, W Huang, T Tanttu, CH Yang, A Laucht, M Veldhorst, FE Hudson, KM Itoh, D Culcer, TD Ladd, A Morello, AS Dzurak
Nature Communications, 9, 4370 (2018)
Two-electron spin correlations in precision placed donors in silicon
Two-electron spin correlations in precision placed donors in silicon MA Broome, SK Gorman, MG House, SJ Hile, JG Keizer, D Keith, CD Hill, TF Watson, WJ Baker, LCL Hollenberg, MY Simmons
 Nature Communications, 9, 980 (2018)
Addressable electron spin resonance using donors and donor molecules in silicon
Addressable electron spin resonance using donors and donor molecules in silicon SJ. Hile, L Fricke, MG. House, E Peretz, CY Chen, Y Wang, M Broome, SK. Gorman, JG. Keizer, R Rahman, MY Simmons Science Advances, 4, eaaq1459 (2018)
Readout and control of the spin-orbit states of two coupled acceptor atoms in a silicon transistor
Readout and control of the spin-orbit states of two coupled acceptor atoms in a silicon transistor J Heijden, T Kobayashi, MG House, J Salfi, S Barraud, R Laviéville, MY Simmons, S Rogge Science Advances, 4, eaat9199 (2018)
Characterization of a Scalable Donor-Based Singlet-Triplet Qubit Architecture in Silicon
Characterization of a Scalable Donor-Based Singlet-Triplet Qubit Architecture in Silicon P Pakkiam, MG House, M Koch, MYS Simmons Nano Letters, 18, 4081 (2018)
Singlet-triplet minus mixing and relaxation lifetimes in a double donor dot
Singlet-triplet minus mixing and relaxation lifetimes in a double donor dot SK Gorman, MA Broome, MG House, SJ Hile, JG Keizer, D Keith, TF Watson, WJ Baker, MY Simmons
 Appl. Phys. Lett., 112, 243105 (2018)
Assessment of a silicon quantum dot spin qubit environment via noise spectroscopy
Assessment of a silicon quantum dot spin qubit environment via noise spectroscopy KW Chan, W Huang, CH Yang, JCC Hwang, B Hensen, T Tanttu, FE Hudson, KM Itoh, A Laucht, A Morello, AS Dzurak
 Phys. Rev. Applied, 10, 044017 (2018)
Coherent control via weak measurements in P-31 single-atom electron and nuclear spin qubits
Coherent control via weak measurements in P-31 single-atom electron and nuclear spin qubits JT Muhonen ,JP Dehollain, A Laucht, S Simmons, R Kalra, FE Hudson, AS Dzurak, A Morello, DN Jamieson, JC McCallum, KM Itoh
 Phys. Rev. B, 98, 155201 (2018)
Robust electric dipole transition at microwave frequencies for nuclear spin qubits in silicon
Robust electric dipole transition at microwave frequencies for nuclear spin qubits in silicon G Tosi, FA Mohiyaddin, S Tenberg, A Laucht, A Morello
 Phys. Rev. B, 98, 075313 (2018)
Single-Shot Single-Gate rf Spin Readout in Silicon
Single-Shot Single-Gate rf Spin Readout in Silicon P. Pakkiam, A. V. Timofeev, M. G. House, M. R. Hogg, T. Kobayashi, M. Koch, S. Rogge, and M. Y. Simmons Physical Review X, 8, 041032 (2018)

News

Quantum computing at scale: Australian scientists achieve compact, sensitive qubit readout

27/11/2018 In The Media

Harnessing the power of ‘spin-orbit’ coupling: scaling up spin-based quantum computation

10/12/2018 In The Media