Weak Chaos and Mixed Dynamics in the String S-matrix

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dc.citation.issue3
dc.citation.rankM21
dc.citation.spage101
dc.citation.volume2024
dc.contributor.authorSavić, Nikola
dc.contributor.authorČubrović, Mihailo
dc.date.accessioned2024-06-10T13:15:07Z
dc.date.available2024-06-10T13:15:07Z
dc.date.issued2024-03-15
dc.description.abstractWe investigate chaotic dynamics in tree-level S-matrices describing the scattering of tachyons, photons and gravitons on highly excited open and closed bosonic strings, motivated by the string/black hole complementarity. The eigenphase spacing distribution and other indicators of quantum chaotic scattering suggest that the dynamics is only weakly chaotic, consisting of both regular/Poisson and chaotic/Wigner-Dyson processes. Only for special values of momenta and (for photon scattering) scattering angles do we find strong chaos of random matrix type. These special values correspond to a crossover between two regimes of scattering, dominated by short versus long partitions of the total occupation number of the highly excited string; they also maximize the information entropy of the S-matrix. The lack of strong chaos suggests that perturbative dynamics of highly excited strings can never describe the universal properties and maximal chaos of black hole horizons.
dc.identifier.doi10.1007/jhep03(2024)101
dc.identifier.issn1029-8479
dc.identifier.issn1126-6708
dc.identifier.scopus2-s2.0-85188137221
dc.identifier.urihttps://pub.ipb.ac.rs/handle/123456789/59
dc.identifier.wos001184316400001
dc.language.isoen
dc.publisherSpringer Science and Business Media Deutschland GmbH
dc.relation.ispartofJournal of High Energy Physics
dc.relation.ispartofabbrJ. High Energy Phys.
dc.rightsopenAccess
dc.titleWeak Chaos and Mixed Dynamics in the String S-matrix
dc.typeArticle
dc.type.versionpublishedVersion
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