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11 papers · 1 filter
Flow-Based Sampling for Entanglement Entropy and the Machine Learning of Defects
Andrea Bulgarelli, Elia Cellini, Karl Jansen +5
We introduce a novel technique to numerically calculate Rényi entanglement entropies in lattice quantum field theory using generative models. We describe how flow-based approaches…
Reinforcement Learning Approach to Shortcuts between Thermodynamic States with Extra Constraints
Rongxing Xu
We propose a systematic method based on reinforcement learning (RL) techniques to find the optimal path that can minimize the total entropy production between two equilibrium state…
Exponential clustering of bipartite quantum entanglement at arbitrary temperatures
Tomotaka Kuwahara, Keiji Saito
Macroscopic quantum effects play central roles in the appearance of inexplicable phenomena in low-temperature quantum many-body physics. Such macroscopic quantumness is often evalu…
Fate of measurement-induced phase transition in long-range interactions
Takaaki Minato, Koudai Sugimoto, Tomotaka Kuwahara +1
We consider quantum many-body dynamics under quantum measurements, where the measurement-induced phase transitions (MIPs) occur when changing the frequency of the measurement. In t…
Lieb-Robinson bound and almost-linear light-cone in interacting boson systems
Tomotaka Kuwahara, Keiji Saito
In this work, we investigate how quickly local perturbations propagate in interacting boson systems with Bose-Hubbard-type Hamiltonians. In general, these systems have unbounded lo…
Absence of fast scrambling in thermodynamically stable long-range interacting systems
Tomotaka Kuwahara, Keiji Saito
In this study, we investigate out-of-time-order correlators (OTOCs) in systems with power-law decaying interactions such as , where is the distance. In such systems, th…