Replicas, averaging and factorization in the IIB matrix model

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dc.citation.issue9
dc.citation.rankM21
dc.citation.spage136
dc.citation.volume2022
dc.contributor.authorČubrović, Mihailo
dc.date.accessioned2023-03-01T07:52:40Z
dc.date.available2023-03-01T07:52:40Z
dc.date.issued2022-09-19
dc.description.abstractWe study the partition functions of multiple replicas (copies) of D-brane configurations in the type IIB (IKKT) matrix model. We consider the quenched regime, where small fluctuations of the matrices are superimposed onto the slow (quenched) dynamics of the background, so the partition function is an ensemble average over the background. Interacting D-branes always factorize in a simple way. On the other hand, the non-interacting BPS configurations may or may not factorize depending on the number of replicas, and their factorization mechanism is more involved as the corresponding saddle-point solutions (half-wormholes) break the replica symmetry. We argue that the simple factorization mechanism of interacting branes is actually more interesting as it carries the specific signatures of quantum gravity, which are absent from disordered field theories like the SYK model.
dc.identifier.doi10.1007/jhep09(2022)136
dc.identifier.issn1029-8479
dc.identifier.scopus2-s2.0-85138308917
dc.identifier.urihttps://pub.ipb.ac.rs/handle/123456789/6
dc.identifier.wos000855785000003
dc.language.isoen
dc.publisherSpringer Science and Business Media LLC
dc.relation.ispartofJournal of High Energy Physics
dc.relation.ispartofabbrJ. High Energ. Phys.
dc.rightsopenAccess
dc.titleReplicas, averaging and factorization in the IIB matrix model
dc.typeArticle
dc.type.versionpublishedVersion
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