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Quantum decoherence is the loss of a system's purity due to its interaction with the surrounding environment. Via the AdS/CFT correspondence, we study how a system decoheres when its environment is a strongly-coupled theory. In the…

高能物理 - 理论 · 物理学 2014-10-22 Shih-Hao Ho , Wei Li , Feng-Li Lin , Bo Ning

The Anderson localization phase transition in the Aubry-Andr\'e-Harper (AAH) model with \textit{p}-wave superconducting (SC) pairing is numerically investigated by suddenly changing the on-site potential from zero to various finite values…

无序系统与神经网络 · 物理学 2018-06-04 Qi-Bo Zeng , Shu Chen , Rong Lü

Entanglement exhibits universal behavior near the ground-state critical point where correlations are long-ranged and the thermodynamic entropy is vanishing. On the other hand, a quantum quench imparts extensive energy and results in a…

量子气体 · 物理学 2022-02-11 Sanku Paul , Paraj Titum , Mohammad F. Maghrebi

We determine holographically 2-point correlators of gauge invariant operators with large conformal weights and entanglement entropy of strips for a time-dependent anisotropic 5-dimensional asymptotically anti-de Sitter spacetime. At the…

高能物理 - 理论 · 物理学 2015-09-02 Christian Ecker , Daniel Grumiller , Stefan A. Stricker

We study the entanglement and the energy density of the radiation emitted after a local quench in a boundary conformal field theory. We use the operator product expansion (OPE) to predict the early- and late-time behavior of the…

高能物理 - 理论 · 物理学 2023-06-07 Lorenzo Bianchi , Stefano De Angelis , Marco Meineri

We investigate the spreading of information in a one-dimensional Bose-Hubbard system after a sudden parameter change. In particular, we study the time-evolution of correlations and entanglement following a quench. The investigated…

其他凝聚态物理 · 物理学 2008-06-03 Andreas Laeuchli , Corinna Kollath

The long-range entanglement dynamics of an one-dimensional spin-1/2 anisotropic XXZ model are studied using the method of the adaptive time-dependent density-matrix renormalization-group. The long-range entanglement can be generated when a…

量子物理 · 物理学 2010-06-02 Jie Ren , Shiqun Zhu

We study one-loop bulk entanglement entropy in even spacetime dimensions using the heat kernel method, which captures the universal piece of entanglement entropy, a logarithmically divergent term in even dimensions. In four dimensions, we…

高能物理 - 理论 · 物理学 2021-07-21 Zhong-Ying Fan

We compute the bulk entanglement entropy of a massive scalar field in a Poincare AdS with the Dirichlet and Neumann boundary condition when we trace out a half space. Moreover, by taking into account the quantum back reaction to the minimal…

高能物理 - 理论 · 物理学 2016-01-25 Taiki Miyagawa , Noburo Shiba , Tadashi Takayanagi

A recent proposal by Ryu and Takayanagi for a holographic interpretation of entanglement entropy in conformal field theories dual to supergravity on anti-de Sitter (adS) is generalized to include entanglement entropy of black holes living…

高能物理 - 理论 · 物理学 2009-11-11 Sergey N. Solodukhin

We numerically investigate the link between the delocalization-localization transition and entanglement in a disordered long-range hopping model of spinless fermions by studying various static and dynamical quantities. This includes the…

强关联电子 · 物理学 2018-03-14 Nilanjan Roy , Auditya Sharma

The entanglement in a Hubbard chain of hardcore bosons is investigated. The analytic expression of the global entanglement in ground state is derived. The divergence of the derivative of the global entanglement shows the quantum criticality…

量子物理 · 物理学 2008-03-07 Xiang Hao , Shiqun Zhu

The large-scale properties of homogeneous states after quantum quenches in integrable systems have been successfully described by a semiclassical picture of moving quasiparticles. Here we consider the generalisation for the entanglement…

统计力学 · 物理学 2018-09-18 Bruno Bertini , Maurizio Fagotti , Lorenzo Piroli , Pasquale Calabrese

We consider a molecular dynamics method, the so-called flea gas for computing the evolution of entanglement after inhomogeneous quantum quenches in an integrable quantum system. In such systems the evolution of local observables is…

统计力学 · 物理学 2020-04-15 Márton Mestyán , Vincenzo Alba

We consider charged black holes in four dimensional AdS space, in the presence of a Weyl correction. We obtain the solution including the effect of back-reaction, perturbatively up to first order in the Weyl coupling, and study its…

高能物理 - 理论 · 物理学 2016-07-20 Anshuman Dey , Subhash Mahapatra , Tapobrata Sarkar

In this paper we study various aspects of entanglement entropy in strongly-coupled de Sitter quantum field theories in various dimensions. We find gravity solutions that are dual to field theories in a fixed de Sitter background, both in…

高能物理 - 理论 · 物理学 2014-07-08 Willy Fischler , Sandipan Kundu , Juan F. Pedraza

We compute the subregion entanglement entropy for a doubly holographic black string model. This system consists of a non-gravitating bath and a gravitating brane, where we incorporate dynamic gravity by adding a DGP term. This opens up a…

高能物理 - 理论 · 物理学 2023-05-24 Carlos Perez-Pardavila

We study the time evolution of the entanglement entropy in the short and long-range coupled harmonic oscillators that have well-defined continuum limit field theories. We first introduce a method to calculate the entanglement evolution in…

统计力学 · 物理学 2015-03-30 M. Ghasemi Nezhadhaghighi , M. A. Rajabpour

We relate the recent derivation of the linearised Einstein equation on an AdS background from holographic entanglement entropy arguments to the Sparling construction: we derive the differential form whose exterior derivative gives the…

高能物理 - 理论 · 物理学 2017-10-25 Mahdi Godazgar

We investigate the holographic entanglement entropy of deformed conformal field theories which are dual to a cutoff AdS space. The holographic entanglement entropy evaluated on a three-dimensional Poincare AdS space with a finite cutoff can…

高能物理 - 理论 · 物理学 2019-01-30 Chanyong Park