Entanglement Rényi entropies from ballistic fluctuation theory: The free fermionic case
Entanglement Rényi entropies from ballistic fluctuation theory: The free fermionic case
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弹道涨落理论中的纠缠 Rényi 熵:自由费米子情况
DOI:
10.21468/scipostphyscore.7.1.005
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发表时间:
2023
影响因子:
3.6
通讯作者:
P. Ruggiero
中科院分区:
文献类型:
--
作者:
Giuseppe Del Vecchio Del Vecchio;B. Doyon;P. Ruggiero
The large-scale behaviour of entanglement entropy in finite-density states, in and out of equilibrium, can be understood using the physical picture of particle pairs. However, the full theoretical origin of this picture is not fully established yet. In this work, we clarify this picture by investigating entanglement entropy using its connection with the large-deviation theory for thermodynamic and hydrodynamic fluctuations. We apply the universal framework of Ballistic Fluctuation Theory (BFT), based the Euler hydrodynamics of the model, to correlation functions of branch-point twist fields, the starting point for computing Rényi entanglement entropies within the replica approach. Focusing on free fermionic systems in order to illustrate the ideas, we show that both the equilibrium behavior and the dynamics of Rényi entanglement entropies can be fully derived from the BFT. In particular, we emphasise that long-range correlations develop after quantum quenches, and accounting for these explain the structure of the entanglement growth. We further show that this growth is related to fluctuations of charge transport, generalising to quantum quenches the relation between charge fluctuations and entanglement observed earlier. The general ideas we introduce suggest that the large-scale behaviour of entanglement has its origin within hydrodynamic fluctuations.
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DOI:
10.1088/1751-8121/acd153
发表时间:
2022-11
期刊:
Journal of Physics A: Mathematical and Theoretical
影响因子:
--
作者:
J. De Nardis;B. Doyon
通讯作者:
J. De Nardis;B. Doyon
影响因子:
5.5
作者:
B. Doyon;G. Perfetto;T. Sasamoto;T. Yoshimura
通讯作者:
B. Doyon;G. Perfetto;T. Sasamoto;T. Yoshimura
DOI:
10.1146/annurev-conmatphys-031016-025451
发表时间:
2018
影响因子:
22.6
作者:
Mitra, Aditi
通讯作者:
Mitra, Aditi
DOI:
10.1103/physrevx.10.031066
发表时间:
2019-12
期刊:
arXiv: Strongly Correlated Electrons
影响因子:
--
作者:
Tianci Zhou;A. Nahum
通讯作者:
Tianci Zhou;A. Nahum
影响因子:
2.8
作者:
Castro-Alvaredo O
通讯作者:
Castro-Alvaredo O