Time-evolving disentanglement in a spin–boson model

作者:Jun-Qi Li; Zhi-Jian Li; Chen Gang; J.-Q. Liang
来源:Physics Letters A, 2006, 359(4): 275-280.

摘要


We study the time-evolution of the mixed-state entanglement in a general spin–boson model including the entanglement sudden death. It is shown that the decay of entanglement depends on the temperature and coupling strength. Moreover the entanglement decay-factor of mixed states has the same form as that of the pure states.

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