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Relaxation time in disordered molecular systems
The Journal of Chemical Physics ( IF 3.1 ) Pub Date : 2015-05-27 15:37:45 , DOI: 10.1063/1.4921691 Rodrigo P. Rocha 1 , José A. Freire 2
The Journal of Chemical Physics ( IF 3.1 ) Pub Date : 2015-05-27 15:37:45 , DOI: 10.1063/1.4921691 Rodrigo P. Rocha 1 , José A. Freire 2
Affiliation
Relaxation time is the typical time it takes for a closed physical system to attain thermal equilibrium. The equilibrium is brought about by the action of a thermal reservoir inducing changes in the system micro-states. The relaxation time is intuitively expected to increase with system disorder. We derive a simple analytical expression for this dependence in the context of electronic equilibration in an amorphous molecular system model. We find that the disorder dramatically enhances the relaxation time but does not affect its independence of the nature of the initial state.
中文翻译:
无序分子系统中的弛豫时间
松弛时间是一个封闭的物理系统达到热平衡所需的典型时间。平衡是由储热器的作用引起的,该储热器引起系统微观状态的变化。直觉上预期松弛时间会随着系统混乱而增加。我们在非晶态分子系统模型中的电子平衡的背景下得出这种依赖性的简单分析表达式。我们发现该障碍极大地延长了弛豫时间,但不影响其对初始状态性质的独立性。
更新日期:2015-05-28
中文翻译:
无序分子系统中的弛豫时间
松弛时间是一个封闭的物理系统达到热平衡所需的典型时间。平衡是由储热器的作用引起的,该储热器引起系统微观状态的变化。直觉上预期松弛时间会随着系统混乱而增加。我们在非晶态分子系统模型中的电子平衡的背景下得出这种依赖性的简单分析表达式。我们发现该障碍极大地延长了弛豫时间,但不影响其对初始状态性质的独立性。