Matrix entanglement

Abstract In gauge/gravity duality, matrix degrees of freedom on the gauge theory side play important roles for the emergent geometry. In this paper, we discuss how the entanglement on the gravity side can be described as the entanglement between matrix degrees of freedom. Our approach, which we call...

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Main Authors: Vaibhav Gautam, Masanori Hanada, Antal Jevicki, Cheng Peng
Format: Article
Language:English
Published: SpringerOpen 2023-01-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP01(2023)003
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author Vaibhav Gautam
Masanori Hanada
Antal Jevicki
Cheng Peng
author_facet Vaibhav Gautam
Masanori Hanada
Antal Jevicki
Cheng Peng
author_sort Vaibhav Gautam
collection DOAJ
description Abstract In gauge/gravity duality, matrix degrees of freedom on the gauge theory side play important roles for the emergent geometry. In this paper, we discuss how the entanglement on the gravity side can be described as the entanglement between matrix degrees of freedom. Our approach, which we call ‘matrix entanglement’, is different from ‘target-space entanglement’ proposed and discussed recently by several groups. We consider several classes of quantum states to which our approach can play important roles. When applied to fuzzy sphere, matrix entanglement can be used to define the usual spatial entanglement in two-brane or five-brane world-volume theory nonperturbatively in a regularized setup. Another application is to a small black hole in AdS5×S5 that can evaporate without being attached to a heat bath, for which our approach suggests a gauge theory origin of the Page curve. The confined degrees of freedom in the partially-deconfined states play the important roles.
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spelling doaj.art-7791d7f91200469c85ac636e7d13cb042023-04-30T11:04:34ZengSpringerOpenJournal of High Energy Physics1029-84792023-01-012023113710.1007/JHEP01(2023)003Matrix entanglementVaibhav Gautam0Masanori Hanada1Antal Jevicki2Cheng Peng3Department of Mathematics, University of SurreyDepartment of Mathematics, University of SurreyDepartment of Physics, Brown UniversityKavli Institute for Theoretical Sciences (KITS), University of Chinese Academy of SciencesAbstract In gauge/gravity duality, matrix degrees of freedom on the gauge theory side play important roles for the emergent geometry. In this paper, we discuss how the entanglement on the gravity side can be described as the entanglement between matrix degrees of freedom. Our approach, which we call ‘matrix entanglement’, is different from ‘target-space entanglement’ proposed and discussed recently by several groups. We consider several classes of quantum states to which our approach can play important roles. When applied to fuzzy sphere, matrix entanglement can be used to define the usual spatial entanglement in two-brane or five-brane world-volume theory nonperturbatively in a regularized setup. Another application is to a small black hole in AdS5×S5 that can evaporate without being attached to a heat bath, for which our approach suggests a gauge theory origin of the Page curve. The confined degrees of freedom in the partially-deconfined states play the important roles.https://doi.org/10.1007/JHEP01(2023)003Black Holes in String TheoryGauge-Gravity CorrespondenceM(atrix) Theories
spellingShingle Vaibhav Gautam
Masanori Hanada
Antal Jevicki
Cheng Peng
Matrix entanglement
Journal of High Energy Physics
Black Holes in String Theory
Gauge-Gravity Correspondence
M(atrix) Theories
title Matrix entanglement
title_full Matrix entanglement
title_fullStr Matrix entanglement
title_full_unstemmed Matrix entanglement
title_short Matrix entanglement
title_sort matrix entanglement
topic Black Holes in String Theory
Gauge-Gravity Correspondence
M(atrix) Theories
url https://doi.org/10.1007/JHEP01(2023)003
work_keys_str_mv AT vaibhavgautam matrixentanglement
AT masanorihanada matrixentanglement
AT antaljevicki matrixentanglement
AT chengpeng matrixentanglement