通过耗散诱导热态与多体局域态之间的转变并检测多体迁移率边
Inducing a transition between thermal and many-body localized states and detecting many-body mobility edges through dissipation
AI总结：
本研究通过准周期$t_1-t_2$模型结合键耗散，证明耗散可诱导热态与多体局域态间的转变，为实验检测多体迁移率边提供新途径。
摘要：
能量中的多体迁移率边（MBME）将热态与多体局域（MBL）态区分开来，是MBL物理中一个关键但具有争议的概念。在此，我们研究了具有迁移率边的准周期$t_1-t_2$模型。在加入最近邻相互作用后，我们提出可能存在MBME。随后，我们通过计算稳态密度矩阵并分析输运行为，研究了一种键耗散对多体系统的影响，并证明耗散能够使系统主要占据热区或MBL区，无论初始状态如何。最后，我们讨论了增大系统尺寸的影响。我们的结果表明，耗散可以诱导热态与MBL态之间的转变，为实验确定MBME的存在提供了一种新方法。
英文摘要：
The many-body mobility edge (MBME) in energy, which separates thermal states from many-body localization (MBL) states, is a critical yet controversial concept in MBL physics. Here we examine the quasiperiodic $t_1-t_2$ model that features a mobility edge. With the addition of nearest-neighbor interactions, we suggest the potential existence of a MBME. Then we investigate the impact of a type of bond dissipation on the many-body system by calculating the steady-state density matrix and analyzing the transport behavior, and demonstrate that dissipation can cause the system to predominantly occupy either the thermal region or the MBL region, irrespective of the initial state. Finally, we discuss the effects of increasing system size. Our results indicate that dissipation can induce transitions between thermal and MBL states, providing a new approach for experimentally determining the existence of the MBME.
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