Comments on entanglement propagation

A bstract We extend our work on entanglement propagation following a local quench in 2+1 dimensional holographic conformal field theories. We find that entanglement propagates along an emergent lightcone, whose speed of propagation v E seems distinct from other measures of quantum information spread...

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Bibliographic Details
Published in:The journal of high energy physics 2017-06, Vol.2017 (6), p.1-18, Article 44
Main Authors: Rozali, Moshe, Vincart-Emard, Alexandre
Format: Article
Language:English
Subjects:
AdS-CFT Correspondence
Black Holes
Butterflies & moths
Classical and Quantum Gravitation
Decay
Elementary Particles
Entropy
Gauge-gravity correspondence
High energy physics
Information dissemination
Physics
Physics and Astronomy
Propagation
Quantum entanglement
Quantum Field Theories
Quantum Field Theory
Quantum phenomena
Quantum Physics
Quantum theory
Regular Article - Theoretical Physics
Regularity
Relativity Theory
String Theory
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Summary:A bstract We extend our work on entanglement propagation following a local quench in 2+1 dimensional holographic conformal field theories. We find that entanglement propagates along an emergent lightcone, whose speed of propagation v E seems distinct from other measures of quantum information spreading. We compare the relations we find to information and hydrodynamic velocities in strongly coupled 2+1 dimensional theories. While early-time entanglement velocities corresponding to small entangling regions are numerically close to the butterfly velocity, late-time entanglement velocities for large regions show less regularity. We also generalize and extend our previous results regarding the late-time decay of the entanglement entropy back to its equilibrium value.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP06(2017)044