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A CMOS silicon spin qubit.

ABSTRACT: 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.

SUBMITTER: Maurand R

PROVIDER: S-EPMC5123048 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature

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A CMOS silicon spin qubit.

Maurand R R Jehl X X Kotekar-Patil D D Corna A A Bohuslavskyi H H Laviéville R R Hutin L L Barraud S S Vinet M M Sanquer M M De Franceschi S S

Nature communications 20161124

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 consist ...[more]

PMID: 27882926

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