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20 April 2024

» arxiv » 1902.2965

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Initialization and Readout of Nuclear Spins via 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 ; Fedor Jelezko ;
Date:	8 Feb 2019
Abstract:	In this work, 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 work paves the way towards 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.
Source:	arXiv, 1902.2965
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