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Trapped Ion Quantum Computing

Fast, broad-band magnetic resonance spectroscopy with diamond widefield relaxometry

arXiv
Authors: C. Mignon, A. R. Ortiz Moreno, H. Shirzad, S. K. Padamati, V. Damle, Y. Ong, R. Schirhagl, M. Chipaux

Year

2022

Paper ID

14164

Status

Preprint

Abstract Read

~2 min

Abstract Words

115

Citations

N/A

Abstract

We present an alternative to conventional Electron Paramagnetic Resonance (EPR) spectroscopy equipment. Avoiding the use of bulky magnets and magnetron equipment, we use the photoluminescence of an ensemble of Nitrogen-Vacancy centers at the surface of a diamond. Monitoring their relaxation time (or T1), we detected their cross-relaxation with a compound of interest. In addition, the EPR spectra are encoded through a localized magnetic field gradient. While recording previous data took 12 minutes per data point with individual NV centers, we were able to reconstruct a full spectrum at once in 3 textrm{seconds}, over a range from 3 to 11 textrm{Gauss}. In terms of sensitivity, only 0.5 μtextrm{L} of a 1 μtextrm{M} hexaaquacopper (II) ion solution was necessary.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2022 reference point for readers tracking recent quantum research.
  • We present an alternative to conventional Electron Paramagnetic Resonance (EPR) spectroscopy equipment.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2212.06087 [2] arXiv https://arxiv.org/abs/2212.06087 [3] Publisher https://arxiv.org/abs/2212.06087

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