Thermalization of quantum fields from time-reversal invariant evolution equations
Thermalization of quantum fields from time-reversal invariant evolution equations
复制标题
时间反转不变演化方程的量子场热化
DOI：
10.1016/s0370-2693(01)01004-8
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发表时间：
2000
影响因子：
4.4
通讯作者：
Jürgen Cox
中科院分区：
文献类型：
--
作者：
Juergen Berges;Jürgen Cox
研究了初始条件下非平衡系综闭合量子系统中相关函数的时间演化。对于标量量子场论，我们证明了一般的时间反转不变演化在大时间点接近平衡。计算提供了一个第一性原理，证明封闭宏观量子系统的大时间行为可以用热系综平均有效地描述。
We study the time evolution of correlation functions in closed quantum systems for nonequilibrium ensembles of initial conditions. For a scalar quantum field theory we show that generic time-reversal invariant evolutions approach equilibrium at large times. The calculation provides a first principles justification that the large-time behavior of closed macroscopic quantum systems can be effectively described by thermal ensemble averages.