On-demand electrical control of spin qubits

被引：35

作者：

Gilbert, Will ^{[1
,2
]}

Tanttu, Tuomo ^{[1
,2
]}

Lim, Wee Han ^{[1
,2
]}

Feng, MengKe ^{[1
]}

Huang, Jonathan Y. ^{[1
]}

Cifuentes, Jesus D. ^{[1
]}

Serrano, Santiago ^{[1
]}

Mai, Philip Y. ^{[1
]}

Leon, Ross C. C. ^{[1
]}

Escott, Christopher C. ^{[1
,2
]}

Itoh, Kohei M. ^{[3
]}

Abrosimov, Nikolay V. ^{[4
]}

Pohl, Hans-Joachim ^{[5
]}

Thewalt, Michael L. W. ^{[6
]}

Hudson, Fay E. ^{[1
,2
]}

Morello, Andrea ^{[1
]}

Laucht, Arne ^{[1
,2
]}

Yang, Chih Hwan ^{[1
,2
]}

Saraiva, Andre ^{[1
,2
]}

Dzurak, Andrew S. ^{[1
,2
]}

机构：

[1] Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW, Australia

[2] Diraq, Sydney, NSW, Australia

[3] Keio Univ, Sch Fundamental Sci & Technol, Yokohama, Japan

[4] Leibniz Inst Kristallzuchtung, Berlin, Germany

[5] VITCON Projectconsult GmbH, Jena, Germany

[6] Simon Fraser Univ, Dept Phys, Burnaby, BC, Canada

来源：

NATURE NANOTECHNOLOGY | 2023年 / 18卷 / 02期

基金：

澳大利亚研究理事会;

关键词：

QUANTUM; SILICON;

D O I：

10.1038/s41565-022-01280-4

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Once called a 'classically non-describable two-valuedness' by Pauli, the electron spin forms a qubit that is naturally robust to electric fluctuations. Paradoxically, a common control strategy is the integration of micromagnets to enhance the coupling between spins and electric fields, which, in turn, hampers noise immunity and adds architectural complexity. Here we exploit a switchable interaction between spins and orbital motion of electrons in silicon quantum dots, without a micromagnet. The weak effects of relativistic spin-orbit interaction in silicon are enhanced, leading to a speed up in Rabi frequency by a factor of up to 650 by controlling the energy quantization of electrons in the nanostructure. Fast electrical control is demonstrated in multiple devices and electronic configurations. Using the electrical drive, we achieve a coherence time T-2,T-Hahn asymptotic to 50 mu s, fast single-qubit gates with T-pi/2 = 3 ns and gate fidelities of 99.93%, probed by randomized benchmarking. High-performance all-electrical control improves the prospects for scalable silicon quantum computing.

引用

页码：131 / +

页数：19

共 45 条

[21] Do micromagnets expose spin qubits to charge and Johnson noise? [J].

Kha, Allen ;

Joynt, Robert ;

Culcer, Dimitrie .

APPLIED PHYSICS LETTERS, 2015, 107 (17)

[22] High-fidelity resonant gating of a silicon-based quantum dot hybrid qubit [J].

Kim, Dohun ;

Ward, Daniel R. ;

Simmons, Christie B. ;

Savage, Don E. ;

Lagally, Max G. ;

Friesen, Mark ;

Coppersmith, Susan N. ;

Eriksson, Mark A. .

NPJ QUANTUM INFORMATION, 2015, 1

[23] Driven coherent oscillations of a single electron spin in a quantum dot [J].

Koppens, F. H. L. ;

Buizert, C. ;

Tielrooij, K. J. ;

Vink, I. T. ;

Nowack, K. C. ;

Meunier, T. ;

Kouwenhoven, L. P. ;

Vandersypen, L. M. K. .

NATURE, 2006, 442 (7104) :766-771

[24] Universal quantum computing with correlated spin-charge states [J].

Kyriakidis, Jordan ;

Burkard, Guido .

PHYSICAL REVIEW B, 2007, 75 (11)

[25] Coherent spin control of s-, p-, d- and f-electrons in a silicon quantum dot [J].

Leon, R. C. C. ;

Yang, C. H. ;

Hwang, J. C. C. ;

Lemyre, J. Camirand ;

Tanttu, T. ;

Huang, W. ;

Chan, K. W. ;

Tan, K. Y. ;

Hudson, F. E. ;

Itoh, K. M. ;

Morello, A. ;

Laucht, A. ;

Pioro-Ladriere, M. ;

Saraiva, A. ;

Dzurak, A. S. .

NATURE COMMUNICATIONS, 2020, 11 (01)

[26] Bell-state tomography in a silicon many-electron artificial molecule [J].

Leon, Ross C. C. ;

Yang, Chih Hwan ;

Hwang, Jason C. C. ;

Lemyre, Julien Camirand ;

Tanttu, Tuomo ;

Huang, Wei ;

Huang, Jonathan Y. ;

Hudson, Fay E. ;

Itoh, Kohei M. ;

Laucht, Arne ;

Pioro-Ladriere, Michel ;

Saraiva, Andre ;

Dzurak, Andrew S. .

NATURE COMMUNICATIONS, 2021, 12 (01)

[27] A crossbar network for silicon quantum dot qubits [J].

Li, Ruoyu ;

Petit, Luca ;

Franke, David P. ;

Dehollain, Juan Pablo ;

Helsen, Jonas ;

Steudtner, Mark ;

Thomas, Nicole K. ;

Yoscovits, Zachary R. ;

Singh, Kanwal J. ;

Wehner, Stephanie ;

Vandersypen, Lieven M. K. ;

Clarke, James S. ;

Veldhorst, Menno .

SCIENCE ADVANCES, 2018, 4 (07)

[28] A CMOS silicon spin qubit [J].

Maurand, R. ;

Jehl, X. ;

Kotekar-Patil, D. ;

Corna, A. ;

Bohuslavskyi, H. ;

Lavieville, R. ;

Hutin, L. ;

Barraud, S. ;

Vinet, M. ;

Sanquer, M. ;

De Franceschi, S. .

NATURE COMMUNICATIONS, 2016, 7

[29] A coherent spin-photon interface in silicon [J].

Mi, X. ;

Benito, M. ;

Putz, S. ;

Zajac, D. M. ;

Taylor, J. M. ;

Burkard, Guido ;

Petta, J. R. .

NATURE, 2018, 555 (7698) :599-+

[30] Two-qubit silicon quantum processor with operation fidelity exceeding 99% [J].

Mills, Adam R. ;

Guinn, Charles R. ;

Gullans, Michael J. ;

Sigillito, Anthony J. ;

Feldman, Mayer M. ;

Nielsen, Erik ;

Petta, Jason R. .

SCIENCE ADVANCES, 2022, 8 (14)

← 1 2 3 4 5 →