非平衡多电子系统光导率的求和规则与渐近行为
强关联电子
2011-08-23 v3 统计力学
超导电性
摘要
对于多电子系统，我们考虑由泵浦场（可以是光场或纵向电场）驱动的非平衡态(NES)。对于描述NES对探测光场的微分响应的微分光导率，我们推导了精确的求和规则和渐近行为，这为实验开辟了广泛的可能性。在推导这些结果的过程中，我们还推导了一般系统的时间依赖NES的通用微分响应函数的普适性质。
引用
@article{arxiv.1101.1585,
title = {Sum Rules and Asymptotic Behaviors for Optical Conductivity of Nonequilibrium Many-Electron Systems},
author = {Akira Shimizu and Tatsuro Yuge},
journal= {arXiv preprint arXiv:1101.1585},
year = {2011}
}
备注
4 pages, no figures. In v2, the title has been changed to stress that the results hold irrespective of the strength of many-body interactions. More general results, Eqs.(28) and (29), have been added. In v3, a typo in the line just after Eq.(21) has been fixed, and a few equations have been displayed