Jagiellonian University Repository

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


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

Show full item record

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

Files in this item

This item appears in the following Collection(s)

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