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We present the analytical calculation of entanglement entropy for a class of two dimensional field theories governed by the symmetries of the Galilean conformal algebra, thus providing a rare example of such an exact computation. These…

高能物理 - 理论 · 物理学 2015-03-25 Arjun Bagchi , Rudranil Basu , Daniel Grumiller , Max Riegler

We consider quantum algebras of observables associated with subregions in theories of Einstein gravity coupled to matter in the $G_N\rightarrow 0$ limit. When the subregion is spatially compact or encompasses an asymptotic boundary, we…

高能物理 - 理论 · 物理学 2024-02-07 Kristan Jensen , Jonathan Sorce , Antony Speranza

In this paper we study the propagation of entanglement entropy after a global instantaneous quench on the CFT boundary of AdS bulk. We consider the Gauss-Bonnet model as a higher curvature gravity model for which we correct the RT(HRT)…

高能物理 - 理论 · 物理学 2018-12-14 Hossein Ghaffarnejad , Emad Yaraie , Mohammad Farsam

One of explanations of the black hole entropy implies that gravity is entirely induced by quantum effects. By using arguments based on the AdS/CFT correspondence we give induced gravity interpretation of the gravity in a brane world in…

高能物理 - 理论 · 物理学 2007-05-23 D. V. Fursaev

The balanced partial entanglement (BPE) was observed to give the reflected entropy and the entanglement wedge cross-section (EWCS) for various mixed states in different theories \cite{Wen:2021qgx,Camargo:2022mme}. It can be calculated in…

高能物理 - 理论 · 物理学 2022-09-13 Qiang Wen , Haocheng Zhong

We calculate the contribution from non-conformal heavy quark sources to the entanglement entropy (EE) of a spherical region in N=4 SUSY Yang-Mills theory. We apply the generalized gravitational entropy method to non-conformal probe D-brane…

高能物理 - 理论 · 物理学 2018-02-14 S. Prem Kumar , Dorian Silvani

We compute the entanglement entropy of a massless spin $2$ field in a sphere in flat Minkowski space. We describe the theory with a linearized metric perturbation field $h_{\mu\nu}$ and decompose it in tensor spherical harmonics. We fix the…

高能物理 - 理论 · 物理学 2020-02-12 Valentin Benedetti , Horacio Casini

We propose a general formula for calculating the entanglement entropy in theories dual to higher derivative gravity where the Lagrangian is a contraction of Riemann tensors. Our formula consists of Wald's formula for the black hole entropy,…

高能物理 - 理论 · 物理学 2014-01-16 Xi Dong

Using AdS/CFT, we study the addition of an arbitrary number of backreacting flavors to the Klebanov-Witten theory, making many checks of consistency between our new Type IIB plus branes solution and expectations from field theory. We study…

高能物理 - 理论 · 物理学 2010-10-27 Francesco Benini , Felipe Canoura , Stefano Cremonesi , Carlos Nunez , Alfonso V. Ramallo

We generalize the usual exponential Boltzmann factor to any reasonable and potentially observable distribution function, $B(E)$. By defining generalized logarithms $\Lambda$ as inverses of these distribution functions, we are led to a…

统计力学 · 物理学 2007-05-23 Rudolf Hanel , Stefan Thurner

In this work, we study the holographic entanglement entropy in AdS$_3$ gravity with the certain mixed boundary condition, which turns out to correspond to $T\bar{T}$-deformed 2D CFTs. By employing the Chern-Simons formalism and Wilson line…

高能物理 - 理论 · 物理学 2023-05-09 Miao He , Yuan Sun

We study the entanglement entropy of random partitions in one- and two-dimensional critical fermionic systems. In an infinite system we consider a finite, connected (hypercubic) domain of linear extent $L$, the points of which with…

无序系统与神经网络 · 物理学 2022-02-18 Gergö Roósz , István A. Kovács , Ferenc Iglói

Using the proposal for holographic entanglement entropy in higher derivative gravities, we compute holographic entanglement entropy for the conformal gravity in four dimensions which turns out to be finite. However, if one subtracts the…

高能物理 - 理论 · 物理学 2014-03-05 Mohsen Alishahiha , Amin Faraji Astaneh , M. Reza Mohammadi Mozaffar

Entanglement entropies are notoriously difficult to compute. Large-N strongly-coupled holographic CFTs are an important exception, where the AdS/CFT dictionary gives the entanglement entropy of a CFT region in terms of the area of an…

高能物理 - 理论 · 物理学 2017-05-30 Sebastian Fischetti , Toby Wiseman

We provide a framework for a perturbative evaluation of the reduced density matrix. The method is based on a path integral in the analytically continued spacetime. It suggests an alternative to the holographic and `standard' replica trick…

高能物理 - 理论 · 物理学 2015-06-19 Vladimir Rosenhaus , Michael Smolkin

We reconsider the one-loop correction to the holographic entanglement entropy in $AdS_{3}/CFT_{2}$ by analysing the contributions due to a bulk higher spin $s$ current or a scalar field with scaling dimension $\Delta$. We consider the…

高能物理 - 理论 · 物理学 2015-06-18 Matteo Beccaria , Guido Macorini

We extend the reflected entropy to the bipartite state in a two dimensional Galilean conformal field theory ($GCFT_2$) which is dual to the asymptotically flat spacetime described by the generalized minimal massive gravity (GMMG). To this…

高能物理 - 理论 · 物理学 2022-01-28 M. R. Setare , M. Koohgard

In this thesis, we focus on higher-curvature extensions of Einstein gravity as toy models to probe universal properties of conformal field theory (CFT) using the gauge/gravity duality. In this context, we are particularly interested in…

高能物理 - 理论 · 物理学 2022-07-27 Javier Moreno

We extend Padmanabhan's entropy functional formalism to show that, in addition to the Gauss-Bonnet or the entire series of Lanczos-Lovelock Lagrangians already obtained, more general higher-order corrections to General Relativity, i.e., the…

广义相对论与量子宇宙学 · 物理学 2015-08-17 Fayçal Hammad

This work presents a universal and revisited formalism for the entropy of the apparent horizon in modified gravity to investigate the validity of the Generalized Second Law (GSL) of thermodynamics. This revisited horizon entropy is…

广义相对论与量子宇宙学 · 物理学 2025-12-22 Soma Heydari , Parastoo Askari , Kayoomars Karami