SU(1,1)相干态与玻色-爱因斯坦凝聚相互作用系统中的量子纠缠(英文)

Quantum entanglement in system of SU(1, 1) coherent state interacting with Bose-Einstein condensates

研究的系统为SU(1,1)相干态和玻色-爱因斯坦凝聚体相互作用体系,在双光子跃迁过程中,分别用量子约化熵和量子相对熵研究了该系统中的SU(1,1)相干态与凝聚体间的纠缠以及SU(1,1)相干态的模间纠缠,分析了光场初始压缩因子、原子间相互作用对场-凝聚体间纠缠和模间纠缠的影响.

We investigate the system of Bose-Einstein condensates interacting with SU(1, 1) coherent state in two-photon transition process, the entanglement of atom-field and the entanglement between the two-mode light field using the quantum reduced entropy and quantum relative entropy are studied, respectively . The influences of the coherent parameter of light field, two-mode photon number difference and interaction between atoms on the evolution of the entanglement of atom-field and the entanglement between the two-mode light field have been discussed.