Bath-induced delocalization in interacting disordered spin chains
Bath-induced delocalization in interacting disordered spin chains
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相互作用的无序自旋链中浴诱导的离域
DOI：
10.1103/physrevb.106.l020202
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发表时间：
2021
影响因子：
3.7
通讯作者：
Dries Sels
中科院分区：
文献类型：
--
作者：
Dries Sels
在这项工作中，我将讨论一些关于多体局部化相对热包裹体稳定性的数值结果。这项工作简化了Morningstar等人最近提出的一个建议[arXiv:2107.05642]，并研究了扰动耦合到马尔可夫槽的小无序自旋链。正则无序海森堡链雪崩稳定性的临界失序值超过wbbb20。与安德森绝缘体形成鲜明对比的是，雪崩阈值随系统大小而漂移，在研究区域中没有饱和的证据。我认为，这些结果最容易用多体局域相的缺失来解释。
In this work I will discuss some numerical results on the stability of the many-body localized phase to thermal inclusions. The work simplifies a recent proposal by Morningstar et al. [arXiv:2107.05642] and studies small disordered spin chains which are perturbatively coupled to a Markovian bath. The critical disorder for avalanche stability of the canonical disordered Heisenberg chain is shown to exceed W>20. In stark contrast to the Anderson insulator, the avalanche threshold drifts considerably with system size, with no evidence of saturation in the studied regime. I will argue that the results are most easily explained by the absence of a many-body localized phase.
局部热交叉数值可访问多体的构造性理论
影响因子：
5.5
作者：
Crowley, Philip;Chandran, Anushya
通讯作者：
Chandran, Anushya