耗散近似下原子的熵压缩

Entropy Squeezing of a Two-level Atom in the Dissipative Approximation

利用量子信息熵理论，研究耗散近似下Jaynes—Cummings模型中原子的熵压缩效应，结果表明：由于耗散的影响，原子压缩的幅度随时间减小，压缩效应随着时间减弱，耗散系数越大，压缩效应减弱越快；场强较大时，由耦合引起的耗散效应增强，压缩效应随时间减弱，当场强较小时可以忽略由环境引起的耗散效应．

The entropy squeezing approximation is investigated by of a two-level atom in theory of quantum field amplitude is small, the influence of dissipation on the Jaynes-Cummings model in the dispersve information entropy. It is shown that the endissipation and the field amplitude. When the the the entropy squeezing effect is very small and can be not taken into account.