Initialization and Readout of Nuclear Spins via a Negatively Charged Silicon-Vacancy Center in Diamond

Mathias H. Metsch, Katharina Senkalla, Benedikt Tratzmiller, Jochen Scheuer, Michael Kern, Jocelyn Achard, Alexandre Tallaire, Martin B. Plenio, Petr Siyushev, and Fedor Jelezko
Phys. Rev. Lett. 122, 190503 – Published 17 May 2019

Abstract

In this Letter, we demonstrate initialization and readout of nuclear spins via a negatively charged silicon-vacancy (SiV) electron spin qubit. Under Hartmann-Hahn conditions the electron spin polarization is coherently transferred to the nuclear spin. The readout of the nuclear polarization is observed via the fluorescence of the SiV. We also show that the coherence time of the nuclear spin (6 ms) is limited by the electron spin-lattice relaxation due to the hyperfine coupling to the electron spin. This Letter paves the way toward realization of building blocks of quantum hardware with an efficient spin-photon interface based on the SiV color center coupled to a long lasting nuclear memory.

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  • Received 6 February 2019

DOI:https://doi.org/10.1103/PhysRevLett.122.190503

© 2019 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsAtomic, Molecular & OpticalQuantum Information, Science & Technology

Authors & Affiliations

Mathias H. Metsch1, Katharina Senkalla1, Benedikt Tratzmiller2, Jochen Scheuer1, Michael Kern1, Jocelyn Achard3, Alexandre Tallaire3,4, Martin B. Plenio2,5, Petr Siyushev1,*, and Fedor Jelezko1,5

  • 1Institute for Quantum Optics, Ulm University, D-89081 Germany
  • 2Institute of Theoretical Physics, Ulm University, D-89081 Germany
  • 3Laboratoire des Sciences des Procédés et des Matériaux, Université Paris 13, Sorbonne Paris Cité, CNRS UPR3407, 93430 Villetaneuse, France
  • 4Institut de Recherche de Chimie Paris, Chimie ParisTech, PSL Research University, CNRS UMR8247, 75005 Paris, France
  • 5Center for Integrated Quantum Science and Technology (IQst), Ulm University, D-89081 Germany

  • *petr.siyushev@uni-ulm.de

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Issue

Vol. 122, Iss. 19 — 17 May 2019

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