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Electrically driven optical interferometry with spins in SiC

ORAL

Abstract

Interfacing solid-state defect electron spins to other quantum systems is an ongoing challenge. The ground-state spin’s weak coupling to its environment bestows excellent coherence properties [1], but also limits desired drive fields. The excited-state orbitals of these electrons, however, can exhibit stronger coupling to phononic and electric fields [2]. Here, we demonstrate electrically driven coherent quantum interference in the optical transition of single, basally oriented divacancies (VVs) in commercially available 4H silicon carbide [3]. By applying microwave frequency electric fields, we coherently drive the VV's excited-state orbitals and induce Landau-Zener-Stückelberg interference fringes in the resonant optical absorption spectrum. Additionally, we find remarkably coherent optical and spin subsystems enabled by the basal VV's symmetry. These properties establish VVs as strong candidates for quantum communication and hybrid system applications, where simultaneous control over optical and spin degrees of freedom is paramount.

[1] Seo, H. et al. Nat. Commun. 7, 12935 (2016)
[2] Whiteley, S. et al. Nat. Phys. 15, 490–495 (2019)
[3] Miao, K. et al. Sci. Adv. (2019) [arXiv: 1905.12780]

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Presenters

  • Kevin Miao

    Pritzker School of Molecular Engineering, University of Chicago, University of Chicago

Authors

  • Kevin Miao

    Pritzker School of Molecular Engineering, University of Chicago, University of Chicago

  • Alexandre Bourassa

    University of Chicago, Pritzker School of Molecular Engineering, University of Chicago

  • Christopher Anderson

    Pritzker School of Molecular Engineering, University of Chicago, Department of Physics, University of Chicago, University of Chicago

  • Samuel J Whiteley

    Pritzker School of Molecular Engineering, University of Chicago, Department of Physics, University of Chicago

  • Alexander Crook

    Pritzker School of Molecular Engineering, University of Chicago, Department of Physics, University of Chicago, University of Chicago

  • Sam L Bayliss

    Pritzker School of Molecular Engineering, University of Chicago

  • Gary Wolfowicz

    Argonne National Lab, Pritzker School of Molecular Engineering, University of Chicago, Center for Molecular Engineering and Materials Science Division, Argonne National Laboratory, Center for Molecular Engineering, Materials Science Division, Argonne National Laboratory, Argonne National Laboratory

  • Gergö Thiering

    Wigner Research Center for Physics, Wigner Research Centre for Physics, Hungarian Academy of Sciences

  • Péter Udvarhelyi

    Wigner Research Center for Physics, Wigner Research Centre for Physics, Hungarian Academy of Sciences

  • Viktor Ivady

    Wigner Research Center for Physics, Linkoping University, Wigner Research Centre for Physics, Hungarian Academy of Sciences

  • Hiroshi Abe

    National Institutes for Quantum and Radiological Science and Technology, National Institutes for Quantum and Radiological Science and Technology (QST)

  • Takeshi Ohshima

    Natl Inst for Quantum & Radiological Science & Tech (QST), National Institutes for Quantum and Radiological Science and Technology, National Institutes for Quantum and Radiological Science and Technology (QST)

  • Adam Gali

    Wigner Research Center for Physics, Wigner Research Centre for Physics, Hungarian Academy of Sciences

  • David Awschalom

    Pritzker School of Molecular Engineering, University of Chicago, University of Chicago