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Quantum entanglement in condensed matter systems
This review focuses on the field of quantum entanglement applied to condensed matter
physics systems with strong correlations, a domain which has rapidly grown over the last …
physics systems with strong correlations, a domain which has rapidly grown over the last …
Entanglement entropy of black holes
The entanglement entropy is a fundamental quantity, which characterizes the correlations
between sub-systems in a larger quantum-mechanical system. For two sub-systems …
between sub-systems in a larger quantum-mechanical system. For two sub-systems …
Towards a derivation of holographic entanglement entropy
We provide a derivation of holographic entanglement entropy for spherical entangling
surfaces. Our construction relies on conformally map** the boundary CFT to a hyperbolic …
surfaces. Our construction relies on conformally map** the boundary CFT to a hyperbolic …
Why does quantum field theory in curved spacetime make sense? And what happens to the algebra of observables in the thermodynamic limit?
E Witten - Dialogues Between Physics and Mathematics: CN …, 2022 - Springer
This article aims to explain some of the basic facts about the questions raised in the title,
without the technical details that are available in the literature. We provide a gentle …
without the technical details that are available in the literature. We provide a gentle …
Holographic c-theorems in arbitrary dimensions
We re-examine holographic versions of the c-theorem and entanglement entropy in the
context of higher curvature gravity and the AdS/CFT correspondence. We select the gravity …
context of higher curvature gravity and the AdS/CFT correspondence. We select the gravity …
Renormalization group running of the entanglement entropy of a circle
We show, using strong subadditivity and Lorentz covariance, that in three-dimensional
space-time the entanglement entropy of a circle is a concave function. This implies the …
space-time the entanglement entropy of a circle is a concave function. This implies the …
Holographic calculations of Renyi entropy
A bstract We extend the approach of [12] to a new calculation of the Rényi entropy of a
general CFT in d dimensions with a spherical entangling surface, in terms of certain thermal …
general CFT in d dimensions with a spherical entangling surface, in terms of certain thermal …
Entanglement entropy from a holographic viewpoint
The entanglement entropy has been historically studied by many authors in order to obtain
quantum mechanical interpretations of the gravitational entropy. The discovery of anti-de …
quantum mechanical interpretations of the gravitational entropy. The discovery of anti-de …
CFT in AdS and boundary RG flows
A bstract Using the fact that flat space with a boundary is related by a Weyl transformation to
anti-de Sitter (AdS) space, one may study observables in boundary conformal field theory …
anti-de Sitter (AdS) space, one may study observables in boundary conformal field theory …
Entanglement entropy in de Sitter space
A bstract We compute the entanglement entropy for some quantum field theories on de Sitter
space. We consider a superhorizon size spherical surface that divides the spatial slice into …
space. We consider a superhorizon size spherical surface that divides the spatial slice into …