Equivalence of spatial and particle entanglement growth after a quantum quench
Equivalence of spatial and particle entanglement growth after a quantum quench
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DOI：
10.1103/physrevb.104.195101
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发表时间：
2019-12
影响因子：
3.7
通讯作者：
A. Del Maestro;H. Barghathi;B. Rosenow
中科院分区：
文献类型：
--
作者：
A. Del Maestro;H. Barghathi;B. Rosenow
我们分析了费米子在一个空间维度的相互作用量子淬火后，研究了稳态纠缠熵密度的增长下，无论是空间模式或粒子双分。对于可积晶格模型，我们发现空间和粒子纠缠熵的增加之间有很好的一致性，而对于混沌模型，两个进一步的邻居相互作用强度的检查表明类似的对应关系。这一结果突出了时间演化下纠缠到热力学熵的动力学转换的一般性，这是我们目前量子统计力学框架的基础。
We analyze fermions after an interaction quantum quench in one spatial dimension and study the growth of the steady state entanglement entropy density under either a spatial mode or particle bipartition. For integrable lattice models, we find excellent agreement between the increase of spatial and particle entanglement entropy, and for chaotic models, an examination of two further neighbor interaction strengths suggests similar correspondence. This result highlights the generality of the dynamical conversion of entanglement to thermodynamic entropy under time evolution that underlies our current framework of quantum statistical mechanics.