Initialization and Readout of Nuclear Spins via negatively charged Silicon-Vacancy Center in Diamond

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.

6 pages, 4 figures

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• All-optical initialization, readout, and coherent preparation of single silicon-vacancy spins in diamond
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• Prolonged orbital relaxation by locally modified phonon density of states for SiV${}^{-}$ center in nanodiamonds
• Coherent microwave, optical, and mechanical quantum control of spin qubits in diamond
• All-Optical Spin Initialization via a Cavity Broadened Optical Transition in On-Chip Hybrid Quantum Photonics
• Spectral features of Pb-related color centers in diamond
• Dark defect charge dynamics in bulk chemical-vapor-deposition-grown diamonds probed via nitrogen vacancy centers
• Optical properties of MoSe${}_2$ monolayer implanted with ultra-low energy Cr ions
• Temperature dependent spin-phonon coupling of boron-vacancy centers in hexagonal boron nitride
• Coherent Control of a Long-Lived Nuclear Memory Spin in a Germanium-Vacancy Multi-Qubit Node
• Efficient Microwave Spin Control of Negatively Charged Group-IV Color Centers in Diamond
• Optimizing the Electrical Interface for Large-Scale Color-Center Quantum Processors
• Entanglement generation using single-photon pulse reflection in realistic networks
• Indirect Control of the ${}^{29}\mathrm{Si}{\mathrm{V}}^{-}$ Nuclear Spin in Diamond
• Magneto-optical properties of Group-IV--vacancy centers in diamond upon hydrostatic pressure
• High-fidelity control of a ${}^{13}$C nuclear spin coupled to a tin-vacancy center in diamond
• On-chip single-photon subtraction by individual silicon vacancy centers in a laser-written diamond waveguide
• Coherent coupling of mechanics to a single nuclear spin