A CMOS silicon spin qubit.

A CMOS silicon spin qubit.
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DOI:
10.1038/ncomms13575
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发表时间:
2016-11-24
影响因子:
16.6
通讯作者:
De Franceschi, S.
De Franceschi, S.
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Maurand, R.;Jehl, X.;Kotekar-Patil, D.;Corna, A.;Bohuslavskyi, H.;Lavieville, R.;Hutin, L.;Barraud, S.;Vinet, M.;Sanquer, M.;De Franceschi, S.

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Silicon, the main constituent of microprocessor chips, is emerging as a promising material for the realization of future quantum processors. Leveraging its well-established complementary metal–oxide–semiconductor (CMOS) technology would be a clear asset to the development of scalable quantum computing architectures and to their co-integration with classical control hardware. Here we report a silicon quantum bit (qubit) device made with an industry-standard fabrication process. The device consists of a two-gate, p-type transistor with an undoped channel. At low temperature, the first gate defines a quantum dot encoding a hole spin qubit, the second one a quantum dot used for the qubit read-out. All electrical, two-axis control of the spin qubit is achieved by applying a phase-tunable microwave modulation to the first gate. The demonstrated qubit functionality in a basic transistor-like device constitutes a promising step towards the elaboration of scalable spin qubit geometries in a readily exploitable CMOS platform. Silicon is a promising material for realization of quantum processors, particularly as it could be naturally integrated with classical control hardware based on CMOS technology. Here the authors report a silicon qubit device made with an industry-standard fabrication process on a CMOS platform.
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