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Exactly solvable gravitating perfect fluid solitons in (2+1) dimensions

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Exactly solvable gravitating perfect fluid solitons in (2+1) dimensions

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dc.contributor.author Adam, C. pl
dc.contributor.author Romańczukiewicz, Tomasz [SAP11019141] pl
dc.contributor.author Wachla, M. pl
dc.contributor.author Wereszczyński, Andrzej [SAP11017887] pl
dc.date.accessioned 2018-11-23T08:59:05Z
dc.date.available 2018-11-23T08:59:05Z
dc.date.issued 2018 pl
dc.identifier.issn 1126-6708 pl
dc.identifier.uri https://ruj.uj.edu.pl/xmlui/handle/item/61342
dc.language eng pl
dc.rights Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa *
dc.rights.uri http://creativecommons.org/licenses/by/4.0/pl/legalcode *
dc.title Exactly solvable gravitating perfect fluid solitons in (2+1) dimensions pl
dc.type JournalArticle pl
dc.abstract.en The Bogomolnyi-Prasad-Sommerfield (BPS) baby Skyrme model coupled to gravity is considered. We show that in an asymptotically flat space-time the model still possesses the BPS property, i.e., admits a BPS reduction to first order Bogomolnyi equations, which guarantees that the corresponding proper energy is a linear function of the topological charge. We also find the mass-radius relation as well as the maximal mass and radius. All these results are obtained in an analytical manner, which implies the complete solvability of this selfgravitating matter system. If a cosmological constant is added, then the BPS property is lost. In de Sitter (dS ) space-time both extremal and non-extremal solutions are found, where the former correspond to finite positive pressure solutions of the flat space-time model. For the asymptotic anti-de Sitter (AdS ) case, extremal solutions do not exist as there are no negative pressure BPS baby Skyrmions in flat space-time. Non-extremal solutions with AdS asymptotics do exist and may be constructed numerically. The impact of the negative cosmological constant on the mass-radius relation is studied. We also found two potentials for which exact multi-soliton solutions in the external AdS space can be obtained. Finally, we elaborate on the implications of these findings for certain three-dimensional models of holographic QCD. pl
dc.description.volume 2018 pl
dc.description.number 7 pl
dc.identifier.doi 10.1007/JHEP07(2018)097 pl
dc.identifier.eissn 1029-8479 pl
dc.title.journal The Journal of High Energy Physics pl
dc.language.container eng pl
dc.affiliation Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego pl
dc.subtype Article pl
dc.identifier.articleid 97 pl
dc.rights.original CC-BY; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0 pl
dc.identifier.project ROD UJ / OP pl
.pointsMNiSW [2018 A]: 40


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Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa