Stationary entanglement of two atoms in a common reservoir

Yunhai Zhang, Yun‐Jie Xia

Suttipong Locharoenrat

Man, Zhong-xiao, Su +3 more

我们学习与一座普通结构化的水库交往的二个纠缠的原子的动力学。借助于原子动力学的准确溶液，我们显示出原子的起始的纠缠的状态的相对阶段控制的新奇的量干扰。量干扰在套住的激动状态的人口和原子的静止纠纷上有大影响。特别地，我们构造原子静止纠纷能在他们的起始的价值上在下面成长的一个明确的条件。

Bing Wang, Shao-hua Xu, Yao-hua Meng

Shangbin Li, Jing‐Bo Xu

The stationary entanglement and Bell violation of two qubits collectively interacting with a common thermal reservoir is investigated, and the analytical relations among average thermal photon number of the reservoir, entanglement and Bell violation of two qubits are given in detail. The initial fraction of Bell singlet state determines whether the common thermal reservoir can enhance the entanglement of two qubits or not in this case. Moreover, the stationary maximally entangled mixed state can emerge in the collective decay of two qubits in a thermal reservoir at zero-temperature only if the fraction of Bell singlet state in the initial state is not smaller than 2/3. Furthermore, it is shown that the collective decay can induce the entanglement of two qutrits initially in the maximally mixed state, and induce distillable entanglement from bound entangled states.

Lech Jakóbczyk

The dynamics of entanglement between two-level atoms immersed in a common photon reservoir at finite temperature is investigated. It is shown that in the regime of strong correlations there are nontrivial asymptotic states which can be interpreted in terms of thermal generalization of Werner states.