Circuit quantum electrodynamics architecture for gate-defined quantum dots in silicon

被引：83

作者：

Mi, X. ^{[1
]}

Cady, J. V. ^{[1
,3
]}

Zajac, D. M. ^{[1
]}

Stehlik, J. ^{[1
,4
]}

Edge, L. F. ^{[2
]}

Petta, J. R. ^{[1
]}

机构：

[1] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[2] HRL Labs LLC, 3011 Malibu Canyon Rd, Malibu, CA 90265 USA

[3] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[4] IBM TJ Watson Res Ctr, Yorktown Hts, NY 10598 USA

来源：

APPLIED PHYSICS LETTERS | 2017年 / 110卷 / 04期

基金：

美国国家科学基金会;

关键词：

SUPERCONDUCTING QUBITS; CAVITY; SPIN; STORAGE;

D O I：

10.1063/1.4974536

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate a hybrid device architecture where the charge states in a double quantum dot (DQD) formed in a Si/SiGe heterostructure are read out using an on-chip superconducting microwave cavity. A quality factor Q = 5400 is achieved by selectively etching away regions of the quantum well and by reducing photon losses through low-pass filtering of the gate bias lines. Homodyne measurements of the cavity transmission reveal DQD charge stability diagrams and a charge-cavity coupling rate g(c)/2 pi = 23 MHz. These measurements indicate that electrons trapped in a Si DQD can be effectively coupled to microwave photons, potentially enabling coherent electron-photon interactions in silicon. Published by AIP Publishing.

引用

收藏

页数：4

相关论文

共 34 条

[1] Broadband filters for abatement of spontaneous emission in circuit quantum electrodynamics [J].

Bronn, Nicholas T. ;

Liu, Yanbing ;

Hertzberg, Jared B. ;

Corcoles, Antonio D. ;

Houck, Andrew A. ;

Gambetta, Jay M. ;

Chow, Jerry M. .

APPLIED PHYSICS LETTERS, 2015, 107 (17)

[2] Cavity Photons as a Probe for Charge Relaxation Resistance and Photon Emission in a Quantum Dot Coupled to Normal and Superconducting Continua [J].

Bruhat, L. E. ;

Viennot, J. J. ;

Dartiailh, M. C. ;

Desjardins, M. M. ;

Kontos, T. ;

Cottet, A. .

PHYSICAL REVIEW X, 2016, 6 (02)

[3]

Bruhat L. E., ARXIV161205214

[4] Dispersive readout of valley splittings in cavity-coupled silicon quantum dots [J].

Burkard, Guido ;

Petta, J. R. .

PHYSICAL REVIEW B, 2016, 94 (19)

[5] Fabrication and characterization of aluminum airbridges for superconducting microwave circuits [J].

Chen, Zijun ;

Megrant, A. ;

Kelly, J. ;

Barends, R. ;

Bochmann, J. ;

Chen, Yu ;

Chiaro, B. ;

Dunsworth, A. ;

Jeffrey, E. ;

Mutus, J. Y. ;

O'Malley, P. J. J. ;

Neill, C. ;

Roushan, P. ;

Sank, D. ;

Vainsencher, A. ;

Wenner, J. ;

White, T. C. ;

Cleland, A. N. ;

Martinis, John M. .

APPLIED PHYSICS LETTERS, 2014, 104 (05)

[6] Charge Number Dependence of the Dephasing Rates of a Graphene Double Quantum Dot in a Circuit QED Architecture [J].

Deng, Guang-Wei ;

Wei, Da ;

Johansson, J. R. ;

Zhang, Miao-Lei ;

Li, Shu-Xiao ;

Li, Hai-Ou ;

Cao, Gang ;

Xiao, Ming ;

Tu, Tao ;

Guo, Guang-Can ;

Jiang, Hong-Wen ;

Nori, Franco ;

Guo, Guo-Ping .

PHYSICAL REVIEW LETTERS, 2015, 115 (12)

[7] Spin-based Quantum Dot Quantum Computing in Silicon [J].

Eriksson, Mark A. ;

Friesen, Mark ;

Coppersmith, Susan N. ;

Joynt, Robert ;

Klein, Levente J. ;

Slinker, Keith ;

Tahan, Charles ;

Mooney, P. M. ;

Chu, J. O. ;

Koester, S. J. .

QUANTUM INFORMATION PROCESSING, 2004, 3 (1-5) :133-146

[8] Quantum dot admittance probed at microwave frequencies with an on-chip resonator [J].

Frey, T. ;

Leek, P. J. ;

Beck, M. ;

Faist, J. ;

Wallraff, A. ;

Ensslin, K. ;

Ihn, T. ;

Buettiker, M. .

PHYSICAL REVIEW B, 2012, 86 (11)

[9] Dipole Coupling of a Double Quantum Dot to a Microwave Resonator [J].

Frey, T. ;

Leek, P. J. ;

Beck, M. ;

Blais, A. ;

Ihn, T. ;

Ensslin, K. ;

Wallraff, A. .

PHYSICAL REVIEW LETTERS, 2012, 108 (04)

[10] Spins in few-electron quantum dots [J].

Hanson, R. ;

Kouwenhoven, L. P. ;

Petta, J. R. ;

Tarucha, S. ;

Vandersypen, L. M. K. .

REVIEWS OF MODERN PHYSICS, 2007, 79 (04) :1217-1265

← 1 2 3 4 →