量子相干性解除及其熵增效应的环境动力学模型

Dynamical Environment Model for Quantum Decoherence and Its Entropy Increment Effect

提出一个环境作用导致量子系统相干性解除（ｄｅｃｏｈｅｒｅｎｃｅ）及其熵增效应的量子动力学模型，这个模型具有一定的普适性，它表明，当系统耦合于适当的环境，Ｓｃｈｒｏｄｉｎｇｅｒ方程支配的动力学演化在宏观极限下将自动实现量子相干性解除和系统熵的增加．伴随着熵由零增加到最大，量子系统将由完全相干的纯态，经历相干性部分解除的中间混合态，最后变为相干性解除的最大混合态。

An Model of Quantum Decoherence and Its Cntropy ioncrement caused by an enviroment is present with certain universality.It is shown that,the dynamical evolution govern by the schrodinger equation can result in Quantum decoherence and entropy increment of the system at macroscopic limit when the system couples with certain enviroment properly.