Deterministic controlled-phase gate and SWAP gate with dipole induced transparency in the weak-coupling regime

作者：Liu, A-Peng^*; Cheng, Liu-Yong; Zhang, Shou; Zhao, Yu; Gao, Xiao-Zhen; Chang, Yan-Hong; Wang, Ai-Ping

来源：Optics Communications, 2016, 379: 19-24.

DOI：10.1016/j.optcom.2016.05.054

• Quantum logic gate
• Quantum teleportation
• Dipole induced transparency
• Nitrogen-vacancy center

We present a scheme to construct a controlled phase-flip (CPF) gate deterministically with the dipole induced transparency (DIT) of a diamond nitrogen-vacancy center embedded in a photonic crystal cavity coupled to two waveguides. Further more, a SWAP gate between a photon and an NV center in cavity is presented with the same quantum system by using the CPF gate. We then show a quantum teleportation scheme between two remote NV centers. The fidelities and efficiencies of the gates can reach relatively high values even if cavity decay and leakage are considered.

• 出版日期2016-11-15
• 单位山西师范大学; 延边大学