4.3 Article

Dynamics of Negativity of a Wannier-Stark Many-Body Localized System Coupled to a Bath

出版社

WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.202100161

关键词

entanglement; open quantum systems; quantum dynamics; tensor networks; Wannier-Stark many-body localization

资金

  1. Technical University of Munich - Institute for Advanced Study - German Excellence Initiative
  2. European Union [291763]
  3. Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [EXC-2111-390814868]
  4. DFG [KN1254/11, 107745057]
  5. European Research Council (ERC) under the European Unions Horizon 2020 research and innovation programme [771537, 851161]
  6. Projekt DEAL

向作者/读者索取更多资源

The dynamics of entanglement in a Wannier-Stark many-body localized system coupled to a dephasing environment is investigated, using the third Renyi negativity as an accessible entanglement proxy. This measure captures the characteristic logarithmic growth of interacting localized phases up to intermediate time-scales, providing a tool to distinguish Wannier-Stark MBL from noninteracting Wannier-Stark localization and quantify quantum correlations in mixed-state dynamics.
An interacting system subjected to a strong linear potential can host a many-body localized (MBL) phase when being slightly perturbed. This so-called Wannier-Stark or tilted-field MBL phase inherits many properties from the well-investigated disordered MBL phase, and provides an alternative route to experimentally engineer interacting localized systems without quenched disorder. Herein, the dynamics of entanglement in a Wannier-Stark MBL system coupled to a dephasing environment is investigated. As an accessible entanglement proxy, the third Renyi negativity R 3 is used, which reduces to the third Renyi entropy in case the system is isolated from the environment. This measure captures the characteristic logarithmic growth of interacting localized phases in the intermediate-time regime, where the effects of the coupling to the environment are not yet dominating the dynamics. Thus, it forms a tool to distinguish Wannier-Stark MBL from noninteracting Wannier-Stark localization up to intermediate time-scales, and to quantify quantum correlations in mixed-state dynamics.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.3
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据