Abstract

We propose efficient schemes for universal quantum gates with the photon polarization states and electron spin states of nitrogen-vacancy (NV) centers in diamond embedded in optical microcavity. A hybrid polarization-spin controlled-NOT gate and a two-qubit controlled phase gate between NV centers in separated cavities are demonstrated in the weak-coupling regime without complex devices or interaction. The gates presented here are deterministic and can be applied directly to a variety of quantum information processing tasks. The feasibility analyses show that our schemes can be accomplished with high fidelity under current technologies and have wide potential applications in quantum communication and computation fields.

© 2013 Optical Society of America

Quantum state engineering with nitrogen-vacancy centers coupled to low-Q microresonator

Liu-Yong Cheng, Hong-Fu Wang, Shou Zhang, and Kyu-Hwang Yeon
Opt. Express 21(5) 5988-5997 (2013)

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)

Universal quantum controlled phase gate on photonic qubits based on nitrogen vacancy centers and microcavity resonators

Chuan Wang, Yong Zhang, Rong-zhen Jiao, and Guang-sheng Jin
Opt. Express 21(16) 19252-19260 (2013)

Heralded universal quantum computing on electron spins in diamond nitrogen-vacancy centers assisted by low-Q microtoroidal resonators

Ming Li, Xin Wang, Jia-Ying Lin, and Mei Zhang
J. Opt. Soc. Am. B 37(3) 618-626 (2020)

Robust universal photonic quantum gates operable with imperfect processes involved in diamond nitrogen-vacancy centers inside low-Q single-sided cavities

Ming Li and Mei Zhang
Opt. Express 26(25) 33129-33141 (2018)