Global Quenches after Localized Perturbations.
Global Quenches after Localized Perturbations.
复制标题
局部扰动后的全局淬灭。
DOI：
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发表时间：
2021
影响因子：
8.6
通讯作者：
M. Fagotti
中科院分区：
文献类型：
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作者：
M. Fagotti
我们研究了自旋1/2链中自旋不变的局部哈密顿量之间的全局猝灭之前的单个自旋翻转的影响。无论离扰动的距离有多大，局部扰动的影响都不会消失。特别是，平移不变性不会恢复，无限时间限制取决于自旋是否翻转。我们认为，这种现象是更普遍的比特定的例子考虑，我们推测，它是由拓扑性质，具体地说，存在的“半局域电荷。"
We investigate the effect of a single spin flip preceding a global quench between translationally invariant local Hamiltonians in spin-1/2 chains. The effect of the localized perturbation does not fade away however large the distance from the perturbation is. In particular, translational invariance is not restored and the infinite-time limit depends on whether the spin was flipped or not. We argue that this phenomenon is more general than the particular example considered and we conjecture that it is triggered by topological properties, specifically, the existence of "semilocal charges."
影响因子：
56.9
作者：
N. Malvania;Yicheng Zhang;Yuan Le;J. Dubail;M. Rigol;D. Weiss
通讯作者：
N. Malvania;Yicheng Zhang;Yuan Le;J. Dubail;M. Rigol;D. Weiss