论文标题
淬灭量子旋转链后的放松和熵产生
Relaxation and entropy generation after quenching quantum spin chains
论文作者
论文摘要
这项工作考虑了Ising中量子淬火和$ 3 $状态的Potts旋转链的熵产生和放松。在没有明确的对称性破裂的情况下，我们发现涉及雷尼熵生长速率和小淬火的磁化松弛的通用比率。我们还证明，磁化松弛率为“动态吉布斯效应”提供了可观察的特征，这是最近发现的熵生长的特征性非单调行为，与准粒子光谱的变化相关。
This work considers entropy generation and relaxation in quantum quenches in the Ising and $3$-state Potts spin chains. In the absence of explicit symmetry breaking we find universal ratios involving Rényi entropy growth rates and magnetisation relaxation for small quenches. We also demonstrate that the magnetisation relaxation rate provides an observable signature for the "dynamical Gibbs effect" which is a recently discovered characteristic non-monotonous behaviour of entropy growth linked to changes in the quasi-particle spectrum.
