...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical Review X >General Principles for the Nonequilibrium Relaxation of Populations in Quantum Materials
【24h】

General Principles for the Nonequilibrium Relaxation of Populations in Quantum Materials

机译：量子材料中种群非平衡弛豫的一般原理

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We examine the problem of how excited populations of electrons relax after they have been excited by a pump. We include three of the most important relaxation processes: (i)?impurity scattering, (ii)?Coulomb scattering, and (iii)?electron-phonon scattering. The relaxation of an excited population of electrons is one of the most fundamental processes measured in pump-probe experiments, but its interpretation remains under debate. We show how several common assumptions about nonequilibrium relaxation that are pervasive in the field may not hold under quite general conditions. The analysis shows that nonequilibrium relaxation is more complex than previously thought, but it yields to recently developed theoretical methods in nonequilibrium theory. In this work, we show how one can use many-body theory to properly interpret and analyze these complex systems. We focus much of the discussion on implications of these results for experiment.
机译：我们研究了被泵浦激发后电子激发态如何松弛的问题。我们包括三个最重要的弛豫过程：（i）杂质散射，（ii）库仑散射和（iii）电子-声子散射。激发电子的弛豫是泵浦探针实验中测量的最基本过程之一，但其解释仍在争论中。我们展示了在现场普遍存在的关于非平衡松弛的几种常见假设可能无法在相当普遍的条件下成立。分析表明，非平衡松弛比以前认为的要复杂得多，但是它产生了非平衡理论中最新开发的理论方法。在这项工作中，我们展示了如何使用多体理论来正确解释和分析这些复杂系统。我们将大部分讨论集中在这些结果对实验的意义上。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号