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Trapped Ion Quantum Computing

Extension of the Coherence Time by Generating MW Dressed States in a Single NV Centre in Diamond

arXiv
Authors: Hiroki Morishita, Toshiyuki Tashima, Disuke Mima, Hiromitsu Kato, Toshiharu Makino, Satoshi Yamasaki, Masanori Fujiwara, Norikazu Mizuochi

Year

2017

Paper ID

44606

Status

Preprint

Abstract Read

~2 min

Abstract Words

110

Citations

N/A

Abstract

Nitrogen-vacancy (NV) centres in diamond hold promise in quantum sensing applications. A major interest in them is an enhancement of their sensitivity by the extension of the coherence time $T2$. In this report, we experimentally generated more than four dressed states in a single NV centre in diamond based on Autler-Townes splitting (ATS). We also observed the extension of the coherence time to T2 sim 1.5 ms which is more than two orders of magnitude longer than that of the undressed states. As an example of a quantum application using these results we propose a protocol of quantum sensing, which shows more than an order of magnitude enhancement in the sensitivity.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2017 reference point for readers tracking recent quantum research.
  • Nitrogen-vacancy (NV) centres in diamond hold promise in quantum sensing applications.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1707.04702 [2] arXiv https://arxiv.org/abs/1707.04702 [3] Publisher https://arxiv.org/abs/1707.04702

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