Closed-loop control of a GaAs-based singlet-triplet spin qubit with 99.5% gate fidelity and low leakage

The exchange interaction between spins poses considerable challenges for high-fidelity control of semiconductor spin qubits. Here, the authors use pulse optimization and closed-loop control to achieve a gate fidelity of 99.5% for exchange-based single-qubit gates of two-electron spin qubits in GaAs.

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Autores principales:	Pascal Cerfontaine, Tim Botzem, Julian Ritzmann, Simon Sebastian Humpohl, Arne Ludwig, Dieter Schuh, Dominique Bougeard, Andreas D. Wieck, Hendrik Bluhm
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Science Q
Acceso en línea:	https://doaj.org/article/abb76d15af0640d8b708f2a20c8bc90b
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spelling	oai:doaj.org-article:abb76d15af0640d8b708f2a20c8bc90b2021-12-02T18:00:09ZClosed-loop control of a GaAs-based singlet-triplet spin qubit with 99.5% gate fidelity and low leakage10.1038/s41467-020-17865-32041-1723https://doaj.org/article/abb76d15af0640d8b708f2a20c8bc90b2020-08-01T00:00:00Zhttps://doi.org/10.1038/s41467-020-17865-3https://doaj.org/toc/2041-1723The exchange interaction between spins poses considerable challenges for high-fidelity control of semiconductor spin qubits. Here, the authors use pulse optimization and closed-loop control to achieve a gate fidelity of 99.5% for exchange-based single-qubit gates of two-electron spin qubits in GaAs.Pascal CerfontaineTim BotzemJulian RitzmannSimon Sebastian HumpohlArne LudwigDieter SchuhDominique BougeardAndreas D. WieckHendrik BluhmNature PortfolioarticleScienceQENNature Communications, Vol 11, Iss 1, Pp 1-6 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Science Q
spellingShingle	Science Q Pascal Cerfontaine Tim Botzem Julian Ritzmann Simon Sebastian Humpohl Arne Ludwig Dieter Schuh Dominique Bougeard Andreas D. Wieck Hendrik Bluhm Closed-loop control of a GaAs-based singlet-triplet spin qubit with 99.5% gate fidelity and low leakage
description	The exchange interaction between spins poses considerable challenges for high-fidelity control of semiconductor spin qubits. Here, the authors use pulse optimization and closed-loop control to achieve a gate fidelity of 99.5% for exchange-based single-qubit gates of two-electron spin qubits in GaAs.
format	article
author	Pascal Cerfontaine Tim Botzem Julian Ritzmann Simon Sebastian Humpohl Arne Ludwig Dieter Schuh Dominique Bougeard Andreas D. Wieck Hendrik Bluhm
author_facet	Pascal Cerfontaine Tim Botzem Julian Ritzmann Simon Sebastian Humpohl Arne Ludwig Dieter Schuh Dominique Bougeard Andreas D. Wieck Hendrik Bluhm
author_sort	Pascal Cerfontaine
title	Closed-loop control of a GaAs-based singlet-triplet spin qubit with 99.5% gate fidelity and low leakage
title_short	Closed-loop control of a GaAs-based singlet-triplet spin qubit with 99.5% gate fidelity and low leakage
title_full	Closed-loop control of a GaAs-based singlet-triplet spin qubit with 99.5% gate fidelity and low leakage
title_fullStr	Closed-loop control of a GaAs-based singlet-triplet spin qubit with 99.5% gate fidelity and low leakage
title_full_unstemmed	Closed-loop control of a GaAs-based singlet-triplet spin qubit with 99.5% gate fidelity and low leakage
title_sort	closed-loop control of a gaas-based singlet-triplet spin qubit with 99.5% gate fidelity and low leakage
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/abb76d15af0640d8b708f2a20c8bc90b
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Closed-loop control of a GaAs-based singlet-triplet spin qubit with 99.5% gate fidelity and low leakage

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