Sudden death and revival of entanglement of two qubits coupled collectively to a thermal reservoir     

廖湘萍  方见树  方卯发 《海洋学报(英文版)》2010,29(9)

In this paper, we investigate the entanglement of two qubits coupled collectively to a common thermal environment and find that the the collective decay can lead to a revival of the entanglement that has already been destroyed. We also show that the ability of the system to revival entanglement relies on the mean photon number of the thermal environment and the degree of entanglement of the initial state.  相似文献