标题： 不可积量子演化中的稳定器熵 显示英文标题

标题： Stabilizer entropy in non-integrable quantum evolutions

摘要： 纠缠和稳定器熵都参与了量子多体系统中复杂行为的出现。 它们的相互作用是可模拟性、信息扩散、热化和典型性的复杂性的根源。 在本工作中，我们研究了自旋链中量子淬火后纠缠、稳定器熵以及纠缠谱的反平坦性的动力学。 我们发现，在长时间行为中，自由费米子理论相对于其随机矩阵理论值显示出这些资源的间隙，而非可积模型则使其饱和。 显示英文摘要

摘要： Entanglement and stabilizer entropy are both involved in the onset of complex behavior in quantum many-body systems. Their interplay is at the root of complexity of simulability, scrambling, thermalization and typicality. In this work, we study the dynamics of entanglement, stabilizer entropy, and the anti-flatness of the entanglement spectrum after a quantum quench in a spin chain. We find that free-fermion theories show a gap in the long-time behavior of these resources compared to their random matrix theory value while non-integrable models saturate it.