Enhanced spin state readout of nitrogen-vacancy centers in diamond using infrared fluorescence

I. Meirzada, S. A. Wolf, A. Naiman, U. Levy, N. Bar-Gill*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Nitrogen-vacancy (NV) centers in diamond have been used in recent years for a wide range of applications, from nanoscale NMR to quantum computation. These applications depend strongly on the efficient readout of the NV center's spin state, which is currently limited. Here we suggest a method of reading the NV center's spin state, using the weak optical transition in the singlet manifold. We numerically calculate the number of photons collected from each spin state using this technique, and show that an order of magnitude enhancement in spin-readout signal-to-noise ratio is expected, making single-shot spin readout within reach. Thus, this method could lead to an order of magnitude enhancement in sensitivity for ubiquitous NV-based sensing applications, and remove a major obstacle from using NVs for quantum information processing.

Original languageAmerican English
Article number125436
JournalPhysical Review B
Volume100
Issue number12
DOIs
StatePublished - 27 Sep 2019

Bibliographical note

Publisher Copyright:
© 2019 American Physical Society.

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