Generation of three-dimensional entanglement with spin qubits coupled to a bimodal microsphere cavity
Anshou Zheng, Xiangying Hao, Xin‐You Lü · Journal of Physics B Atomic Molecular and Optical Physics · 2011
An alternative scheme is proposed to generate three-dimensional entanglement with two nitrogen-vacancy (N-V) centres coupled strongly to whispering gallery modes in a silica microsphere. The present scheme takes full advantage of the ultrahigh quality factor of silica microspheres and the exceptional spin properties of N-V centres. Our numerical simulation shows that our scheme is stable to deviation of corresponding experimental parameters and insensitive to decoherence such as the excited state spontaneous emission and cavity decay. In addition, based on the same model, three-dimensional entanglement can be realized by adiabatic evolution of the dark state.