Gate-reflectometry dispersive readout and coherent control of a spin qubit in silicon

A. Crippa (), R. Ezzouch, A. Aprá, A. Amisse, R. Laviéville, L. Hutin, B. Bertrand, M. Vinet, M. Urdampilleta, T. Meunier, M. Sanquer, X. Jehl, R. Maurand () and S. Franceschi
Additional contact information
A. Crippa: University of Grenoble Alpes
R. Ezzouch: University of Grenoble Alpes
A. Aprá: University of Grenoble Alpes
A. Amisse: University of Grenoble Alpes
R. Laviéville: CEA, LETI, Minatec Campus
L. Hutin: CEA, LETI, Minatec Campus
B. Bertrand: CEA, LETI, Minatec Campus
M. Vinet: CEA, LETI, Minatec Campus
M. Urdampilleta: University of Grenoble Alpes
T. Meunier: University of Grenoble Alpes
M. Sanquer: University of Grenoble Alpes
X. Jehl: University of Grenoble Alpes
R. Maurand: University of Grenoble Alpes
S. Franceschi: University of Grenoble Alpes

Nature Communications, 2019, vol. 10, issue 1, 1-6

Abstract: Abstract Silicon spin qubits have emerged as a promising path to large-scale quantum processors. In this prospect, the development of scalable qubit readout schemes involving a minimal device overhead is a compelling step. Here we report the implementation of gate-coupled rf reflectometry for the dispersive readout of a fully functional spin qubit device. We use a p-type double-gate transistor made using industry-standard silicon technology. The first gate confines a hole quantum dot encoding the spin qubit, the second one a helper dot enabling readout. The qubit state is measured through the phase response of a lumped-element resonator to spin-selective interdot tunneling. The demonstrated qubit readout scheme requires no coupling to a Fermi reservoir, thereby offering a compact and potentially scalable solution whose operation may be extended above 1 K.

Date: 2019
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-019-10848-z Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10848-z

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-019-10848-z

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().