基于两量子比特Rabi模型暗态解的Bell态制备

Generation of Bell states based on a dark-state solution of the two-qubit Rabi model

Bell态在量子光学和量子信息中具有重要的应用价值.该文基于两量子比特Rabi模型的特殊暗态制备单光子源的方案,重点探究了Bell态的同时确定性制备,并研究了有无单光子释放的情况下,环境对制备Bell态保真度的影响.数值结果表明,所提出的方案可以制备确定性的Bell态,并且在耗散环境下能保持高保真度.

Bell states have important applications in quantum optics and quantum information.Based on the scheme of generating a single photon source from a special dark state of the two-qubit Rabi model,we study the simultaneously generation of Bell states.We also study the influence of environment on the fidelity of Bell state with or without single photon emission.The numerical results show that the proposed scheme can generate stable deterministic Bell states and maintain high fidelity in dissipative environment.