Submatrix deconfinement and small black holes in AdS

Abstract Large N gauged multi-matrix quantum mechanical models usually have a first order Hagedorn transition, related to deconfinement. In this transition the change of the energy and entropy is of order N 2 at the critical temperature. This paper studies the microcanonical ensemble of the model at...

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Main Author: David Berenstein
Format: Article
Language:English
Published: SpringerOpen 2018-09-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP09(2018)054
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author David Berenstein
author_facet David Berenstein
author_sort David Berenstein
collection DOAJ
description Abstract Large N gauged multi-matrix quantum mechanical models usually have a first order Hagedorn transition, related to deconfinement. In this transition the change of the energy and entropy is of order N 2 at the critical temperature. This paper studies the microcanonical ensemble of the model at intermediate energies 1 ≪ E ≪ N 2 in the coexistence region for the first order phase transition. Evidence is provided for a partial deconfinement phase where submatrix degrees of freedom for a U(M) subgroup of U(N), with M ≪ N have an excitation energy of order M 2 and are effectively phase separated from the other degrees of freedom. These results also provide a simple example of the Susskind-Horowitz-Polchinski correspondence principle where a transition from a long string to a black hole is smooth. Implications for the dual configurations of small black holes in AdS are discussed.
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spelling doaj.art-edd74478957e4490be327fdf6d130f0c2022-12-22T00:26:36ZengSpringerOpenJournal of High Energy Physics1029-84792018-09-012018911910.1007/JHEP09(2018)054Submatrix deconfinement and small black holes in AdSDavid Berenstein0Department of Physics, University of CaliforniaAbstract Large N gauged multi-matrix quantum mechanical models usually have a first order Hagedorn transition, related to deconfinement. In this transition the change of the energy and entropy is of order N 2 at the critical temperature. This paper studies the microcanonical ensemble of the model at intermediate energies 1 ≪ E ≪ N 2 in the coexistence region for the first order phase transition. Evidence is provided for a partial deconfinement phase where submatrix degrees of freedom for a U(M) subgroup of U(N), with M ≪ N have an excitation energy of order M 2 and are effectively phase separated from the other degrees of freedom. These results also provide a simple example of the Susskind-Horowitz-Polchinski correspondence principle where a transition from a long string to a black hole is smooth. Implications for the dual configurations of small black holes in AdS are discussed.http://link.springer.com/article/10.1007/JHEP09(2018)054ConfinementAdS-CFT CorrespondenceBlack Holes in String TheoryMatrix Models
spellingShingle David Berenstein
Submatrix deconfinement and small black holes in AdS
Journal of High Energy Physics
Confinement
AdS-CFT Correspondence
Black Holes in String Theory
Matrix Models
title Submatrix deconfinement and small black holes in AdS
title_full Submatrix deconfinement and small black holes in AdS
title_fullStr Submatrix deconfinement and small black holes in AdS
title_full_unstemmed Submatrix deconfinement and small black holes in AdS
title_short Submatrix deconfinement and small black holes in AdS
title_sort submatrix deconfinement and small black holes in ads
topic Confinement
AdS-CFT Correspondence
Black Holes in String Theory
Matrix Models
url http://link.springer.com/article/10.1007/JHEP09(2018)054
work_keys_str_mv AT davidberenstein submatrixdeconfinementandsmallblackholesinads