Reflected entropy in random tensor networks. Part III. Triway cuts

Abstract For general random tensor network states at large bond dimension, we prove that the integer Rényi reflected entropies (away from phase transitions) are determined by minimal triway cuts through the network. This generalizes the minimal cut description of bipartite entanglement for these sta...

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Main Authors: Chris Akers, Thomas Faulkner, Simon Lin, Pratik Rath
Format: Article
Language:English
Published: SpringerOpen 2024-12-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP12(2024)209
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author Chris Akers
Thomas Faulkner
Simon Lin
Pratik Rath
author_facet Chris Akers
Thomas Faulkner
Simon Lin
Pratik Rath
author_sort Chris Akers
collection DOAJ
description Abstract For general random tensor network states at large bond dimension, we prove that the integer Rényi reflected entropies (away from phase transitions) are determined by minimal triway cuts through the network. This generalizes the minimal cut description of bipartite entanglement for these states. A natural extrapolation away from integer Rényi parameters, suggested by the triway cut problem, implies the holographic conjecture S R = 2EW, where S R is the reflected entropy and EW is the entanglement wedge cross-section. Minimal triway cuts can be formulated as integer programs which cannot be relaxed to find a dual maximal flow/bit-thread description. This sheds light on the gap between the existence of tripartite entanglement in holographic states and the bipartite entanglement structure motivated by bit-threads. In particular, we prove that the Markov gap that measures tripartite entanglement is lower bounded by the integrality gap of the integer program that computes the triway cut.
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spelling doaj-art-f5e0cba9c9ec4c0bbe6047fb0f94f6e82025-01-05T12:06:25ZengSpringerOpenJournal of High Energy Physics1029-84792024-12-0120241217010.1007/JHEP12(2024)209Reflected entropy in random tensor networks. Part III. Triway cutsChris Akers0Thomas Faulkner1Simon Lin2Pratik Rath3Department of Physics and Center for Theory of Quantum Matter, University of Colorado BoulderDepartment of Physics, University of IllinoisNew York University Abu DhabiCenter for Theoretical Physics and Department of Physics, University of California, BerkeleyAbstract For general random tensor network states at large bond dimension, we prove that the integer Rényi reflected entropies (away from phase transitions) are determined by minimal triway cuts through the network. This generalizes the minimal cut description of bipartite entanglement for these states. A natural extrapolation away from integer Rényi parameters, suggested by the triway cut problem, implies the holographic conjecture S R = 2EW, where S R is the reflected entropy and EW is the entanglement wedge cross-section. Minimal triway cuts can be formulated as integer programs which cannot be relaxed to find a dual maximal flow/bit-thread description. This sheds light on the gap between the existence of tripartite entanglement in holographic states and the bipartite entanglement structure motivated by bit-threads. In particular, we prove that the Markov gap that measures tripartite entanglement is lower bounded by the integrality gap of the integer program that computes the triway cut.https://doi.org/10.1007/JHEP12(2024)209AdS-CFT CorrespondenceGauge-Gravity Correspondence
spellingShingle Chris Akers
Thomas Faulkner
Simon Lin
Pratik Rath
Reflected entropy in random tensor networks. Part III. Triway cuts
Journal of High Energy Physics
AdS-CFT Correspondence
Gauge-Gravity Correspondence
title Reflected entropy in random tensor networks. Part III. Triway cuts
title_full Reflected entropy in random tensor networks. Part III. Triway cuts
title_fullStr Reflected entropy in random tensor networks. Part III. Triway cuts
title_full_unstemmed Reflected entropy in random tensor networks. Part III. Triway cuts
title_short Reflected entropy in random tensor networks. Part III. Triway cuts
title_sort reflected entropy in random tensor networks part iii triway cuts
topic AdS-CFT Correspondence
Gauge-Gravity Correspondence
url https://doi.org/10.1007/JHEP12(2024)209
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