Abstract

We investigate the dynamics of quantum coherence among multiple diamond nitrogen–vacancy centers (NVCs) coupled to a microsphere whispering-gallery-mode (WGM) cavity under external driving, through numerically simulating the Markovian quantum master equation. We show that quantum coherence (both normal quantum coherence and relative entropy) displays a series of damped oscillations under various experimental situations, which reflects the intricate interplay and competition between the dissipative effects and NVC-WGM coupling. Our results also show that normal quantum coherence is an upper bound for relative entropy. The feasibility of our proposal is supported by currently available experimental techniques.

© 2023 Optica Publishing Group

Entanglement dynamics for three nitrogen-vacancy centers coupled to a whispering-gallery-mode microcavity

Wanlu Song, Wanli Yang, Qiong Chen, Qizhe Hou, and Mang Feng
Opt. Express 23(11) 13734-13751 (2015)

Scalable multi-qubit quantum gates in quantum networks based on the microtoroidal-resonator-mediated nitrogen-vacancy centers in diamond

Taian Wang and Yong Zhang
J. Opt. Soc. Am. B 37(5) 1372-1378 (2020)

Dissipation-assisted spin squeezing of nitrogen-vacancy centers coupled to a rectangular hollow metallic waveguide

Wanlu Song, Wanli Yang, Junhong An, and Mang Feng
Opt. Express 25(16) 19226-19235 (2017)

Dynamics of quantum Fisher information and quantum coherence of two interacting atoms under time–fractional analysis

K. El Anouz, C. P. Onyenegecha, A. I. Opara, Ahmed Salah, and A. El Allati
J. Opt. Soc. Am. B 39(4) 979-989 (2022)

Simple schemes for universal quantum gates with nitrogen-vacancy centers in diamond

Liu-Yong Cheng, Hong-Fu Wang, and Shou Zhang
J. Opt. Soc. Am. B 30(7) 1821-1826 (2013)