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Trapped Ion Quantum Computing

Hyperfine spectroscopy and fast, all-optical arbitrary state initialization and readout of a single, ten-level {}73Ge vacancy nuclear spin qudit in diamond

arXiv
Authors: C. Adambukulam, B. C. Johnson, A. Morello, A. Laucht

Year

2023

Paper ID

55062

Status

Preprint

Abstract Read

~2 min

Abstract Words

106

Citations

N/A

Abstract

A high-spin nucleus coupled to a color center can act as a long-lived memory qudit in a spin-photon interface. The germanium vacancy (GeV) in diamond has attracted recent attention due to its excellent spectral properties and provides access to the ten-dimensional Hilbert space of the I=9/2 {}73Ge nucleus. Here, we observe the {}73GeV hyperfine structure, perform nuclear spin readout, and optically initialize the {}73Ge spin into any eigenstate on a μs timescale and with a fidelity of up to sim 84\%. Our results establish the {}73GeV as an optically addressable high-spin quantum platform for a high-efficiency spin-photon interface as well as for foundational quantum physics and metrology.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2023 reference point for readers tracking recent quantum research.
  • A high-spin nucleus coupled to a color center can act as a long-lived memory qudit in a spin-photon interface.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2309.04126 [2] arXiv https://arxiv.org/abs/2309.04126 [3] Publisher https://arxiv.org/abs/2309.04126

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