Entanglement entropy growth in stochastic conformal field theory and the KPZ class
Entanglement entropy growth in stochastic conformal field theory and the KPZ class
复制标题
随机共形场理论和 KPZ 类中的纠缠熵增长
DOI:
10.1209/0295-5075/131/10007
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
P. Le Doussal
中科院分区:
文献类型:
--
作者:
D. Bernard;P. Le Doussal
We introduce a model of effective conformal quantum field theory in dimension coupled to stochastic noise, where Kardar-Parisi-Zhang (KPZ) class fluctuations can be observed. The analysis of the quantum dynamics of the scaling operators reduces to the study of random trajectories in a random environment, modeled by Brownian vector fields. We use recent results on random walks in random environments to calculate the time-dependent entanglement entropy of a subsystem interval, starting from a factorized state. We find that the fluctuations of the entropy in the large deviation regime are governed by the universal Tracy-Widom distribution. This enlarges the KPZ class, previously observed in random circuit models, to a family of interacting many-body quantum systems.
DOI:
10.1214/20-ejp515
发表时间:
2019-05
期刊:
arXiv: Probability
影响因子:
--
作者:
Guillaume Barraquand;M. Rychnovsky
通讯作者:
Guillaume Barraquand;M. Rychnovsky
DOI:
10.1073/pnas.1906914116
发表时间:
2019
期刊:
Proceedings of the National Academy of Sciences
影响因子:
--
作者:
Gopalakrishnan, Sarang;Vasseur, Romain;Ware, Brayden
通讯作者:
Ware, Brayden
影响因子:
1.8
作者:
Borodin, Alexei;Gorin, Vadim;Wheeler, Michael
通讯作者:
Wheeler, Michael