论文标题
纠缠从频道镜面到连续测量的通用性
Universality of entanglement transitions from stroboscopic to continuous measurements
论文作者
论文摘要
纠缠熵的广泛尺度和超扩张尺度之间的测量驱动驱动的转变获得了兴趣，因为它们在开放的相互作用量子系统中阐明了热量和控制的复杂物理。尽管这种过渡是在随机量子电路中的频镜测量中得到很好的确定的，但与物理设置的关键联系是其扩展到连续观测的，在这种情况下，对于一个可集成的模型，已经表明过渡会改变其性质并立即变化。在这里，我们证明，如果连续测量的系统不可随机，并表明它在频道镜模型中的过渡中平稳连接，则有限耦合处的纠缠过渡持续存在。这提供了在广泛的实验环境和后者积累的知识之间的桥梁。
Measurement-driven transitions between extensive and sub-extensive scaling of the entanglement entropy receive interest as they illuminate the intricate physics of thermalization and control in open interacting quantum systems. Whilst this transition is well established for stroboscopic measurements in random quantum circuits, a crucial link to physical settings is its extension to continuous observations, where for an integrable model it has been shown that the transition changes its nature and becomes immediate. Here, we demonstrate that the entanglement transition at finite coupling persists if the continuously measured system is randomly nonintegrable, and show that it is smoothly connected to the transition in the stroboscopic models. This provides a bridge between a wide range of experimental settings and the wealth of knowledge accumulated for the latter systems.
