Probing the onset of quantum avalanches in a many-body localized system
Probing the onset of quantum avalanches in a many-body localized system
复制标题
探测多体局域系统中量子雪崩的发生
DOI：
10.1038/s41567-022-01887-3
复制
发表时间：
2023
期刊：
影响因子：
19.6
通讯作者：
Greiner, Markus
中科院分区：
文献类型：
--
作者：
Léonard, Julian;Kim, Sooshin;Rispoli, Matthew;Lukin, Alexander;Schittko, Robert;Kwan, Joyce;Demler, Eugene;Sels, Dries;Greiner, Markus
强关联系统在远离平衡的状态下会出现意想不到的现象。一个例子是多体局部化，它阻止通用相互作用系统即使在很长一段时间内也无法达到热平衡。多体局域相的稳定性已被预测为阻碍的存在下，作为一个浴，导致整个系统的离域通过雪崩传播机制，-小的热夹杂物。在这里，我们研究的动力学的热包裹体的大小可变时，它耦合到一个多体局域系统。我们发现的证据加速运输的热包裹体进入本地化区域。我们监测雪崩如何通过本地化系统传播，并通过测量随时间推移的站点分辨熵使其逐站点热化。此外，我们隔离强相关浴诱导动力学浴和系统之间的多点相关性。我们的研究结果对多体局域系统的鲁棒性及其临界行为具有影响。
Strongly correlated systems can exhibit unexpected phenomena when brought in a state far from equilibrium. An example is many-body localization, which prevents generic interacting systems from reaching thermal equilibrium even at long times,. The stability of the many-body localized phase has been predicted to be hindered by the presence of small thermal inclusions that act as a bath, leading to the delocalization of the entire system through an avalanche propagation mechanism, , , , –. Here we study the dynamics of a thermal inclusion of variable size when it is coupled to a many-body localized system. We find evidence for accelerated transport of thermal inclusion into the localized region. We monitor how the avalanche spreads through the localized system and thermalizes it site by site by measuring the site-resolved entropy over time. Furthermore, we isolate the strongly correlated bath-induced dynamics with multipoint correlations between the bath and the system. Our results have implications on the robustness of many-body localized systems and their critical behaviour.
登录
查看更多内容
影响因子：
3.7
作者：
A. Morningstar;Luis Colmenarez;V. Khemani;D. J. Luitz;D. Huse
通讯作者：
A. Morningstar;Luis Colmenarez;V. Khemani;D. J. Luitz;D. Huse
影响因子：
3.7
作者：
F. Setiawan;D. Deng;J. Pixley
通讯作者：
F. Setiawan;D. Deng;J. Pixley
安德森和多体定位转变的无限时间分析。
影响因子：
8.6
作者：
P. Sierant;D. Delande;J. Zakrzewski
通讯作者：
J. Zakrzewski
影响因子：
2.8
作者：
S. Kelly;R. Nandkishore;J. Marino
通讯作者：
S. Kelly;R. Nandkishore;J. Marino
相互作用的无序自旋链中浴诱导的离域
影响因子：
3.7
作者：
Dries Sels
通讯作者：
Dries Sels