中文

含次近邻跃迁的一维 Hubbard 模型的热化率

统计力学 2017-03-22 v3

摘要

我们考虑一个带有附加次近邻跃迁项的费米子 Hubbard 链。我们在量子玻尔兹曼方程框架内研究了准动量分布函数的热化率。我们发现热化率与次近邻跃迁的平方成正比:在一维双粒子散射量子玻尔兹曼方程中,即使是在最近邻跃迁基础上附加微弱的次近邻跃迁,也会导致热化。我们还研究了热化率的温度依赖性,在偏离半填充的情况下,对于最终热化分布的小温度,热化率变得指数级小。

关键词

引用

@article{arxiv.1607.07115,
  title  = {Thermalization rates in the one dimensional Hubbard model with next-to-nearest neighbor hopping},
  author = {Fabian R. A. Biebl and Stefan Kehrein},
  journal= {arXiv preprint arXiv:1607.07115},
  year   = {2017}
}

备注

Modified last sentence in abstract, corrected the German umlaut \"a in citation [1], y-axis label in figure 7 now with correct prefactor, y-axis label in figure 8 rewritten to match with the others