2020/05/31 by Marcin Szyniszewski, Alessandro Romito, Henning Schomerus · 2 citations
Computer Science · Mathematics · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Entropy (arrow of time) #Integrable system #Mathematical physics #Mathematics #Neural Networks and Reservoir Computing #Physics #Quantum #Quantum entanglement #Quantum many-body systems #Quantum mechanics #Scaling #Statistical physics #Stroboscope #Theoretical physics #Thermalisation #Universality (dynamical systems) #cond-mat.dis-nn #cond-mat.stat-mech #cond-mat.str-el #quant-ph
paper · pdf · doi:10.1103/physrevlett.125.210602
published as Phys. Rev. Lett. 125, 210602 (2020) · 9 pages, 10 figures, includes supplemental material
arxiv created 2020/11/20 · openalex publication_date 2020/11/20 · arxiv updated 2020/11/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Measurement-driven transitions between extensive and subextensive scaling of the entanglement entropy receive interest as they illuminate the intricate physics of thermalization and control in open interacting quantum systems. While 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.