中文

从载流非平衡态淬灭中的缺陷产生

统计力学 2016-03-29 v2 量子物理

摘要

我们考虑一个量子系统在通过量子临界点的幺正驱动过程中缺陷的产生,该系统初始制备于载流非平衡态。在初始电流值较低时,恢复了缺陷产生的量子 Kibble-Zurek 标度。然而,在初始电流值较大时,即远离初始平衡态的情况下,获得了缺陷产生的普适标度,该标度表现出对初始电流值的代数依赖性。这些标度预测由精确可解的 Ising 量子链验证,其中载流态通过施加 Dzyaloshinskii-Moriya 相互作用项来选取。

关键词

引用

@article{arxiv.1508.07971,
  title  = {Defect production in quench from current-carrying non-equilibrium state},
  author = {Dragi Karevski and Rosemary J. Harris},
  journal= {arXiv preprint arXiv:1508.07971},
  year   = {2016}
}

备注

13 pages, 3 figures. v2: Minor changes. This is an author-created, un-copyedited version of an article published in JSTAT. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://dx.doi.org/10.1088/1742-5468/2016/03/033204