A long-lived spin qubit in an optically active semiconductor quantum dot

Leon Zaporski; Jonathan H. Bodey; Noah Shofer; Santanu Manna; Daniel M. Jackson; Saimon Covre da Silva; Urs Haeusler; Mete Atatiire; Dorian A. Gangloff; Armando Rastelli; Claire Le Gall

doi:10.1364/QIM.2021.Th2C.5

Quantum Information and Measurement VI 2021
Technical Digest Series (Optica Publishing Group, 2021),
paper Th2C.5
•https://doi.org/10.1364/QIM.2021.Th2C.5

A long-lived spin qubit in an optically active semiconductor quantum dot

Leon Zaporski, Jonathan H. Bodey, Noah Shofer, Santanu Manna, Daniel M. Jackson, Saimon Covre da Silva, Urs Haeusler, Mete Atatiire, Dorian A. Gangloff, Armando Rastelli, and Claire Le Gall

Quantum Information and Measurement 2021

Washington, DC United States
1–5 November 2021
ISBN: 978-1-957171-01-2

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Quantum Information Processing and Computing I (Th2C)

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L. Zaporski, J. H. Bodey, N. Shofer, S. Manna, D. M. Jackson, S. C. da Silva, U. Haeusler, M. Atatiire, D. A. Gangloff, A. Rastelli, and C. Le Gall, "A long-lived spin qubit in an optically active semiconductor quantum dot," in Quantum Information and Measurement VI 2021, F. Sciarrino, N. Treps, M. Giustina, and C. Silberhorn, eds., Technical Digest Series (Optica Publishing Group, 2021), paper Th2C.5.

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Abstract

We report on the first spin-control experiments in optically active GaAs/AlGaAs quantum dots. Using dynamic decoupling, we retain a quantum superposition for up to 27 μs, a ten-fold improvement over the state-of-the-art.

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A long-lived spin qubit in an optically active semiconductor quantum dot

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