期刊
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
卷 259, 期 5, 页码 -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
- Technical University of Munich - Institute for Advanced Study - German Excellence Initiative
- European Union [291763]
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [EXC-2111-390814868]
- DFG [KN1254/11, 107745057]
- European Research Council (ERC) under the European Unions Horizon 2020 research and innovation programme [771537, 851161]
- Projekt DEAL
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。
推荐
暂无数据