Coupling hydrodynamics to nonequilibrium degrees of freedom in strongly interacting quark-gluon plasma

2014
journal article
article
63
dc.abstract.enRelativistic hydrodynamics simulations of quark-gluon plasma play a pivotal role in our understanding of heavy ion collisions at RHIC and LHC. They are based on a phenomenological description due to Müller, Israel, Stewart (MIS) and others, which incorporates viscous effects and ensures a well-posed initial value problem. Focusing on the case of conformal plasma we propose a generalization which includes, in addition, the dynamics of the least damped far-from-equilibrium degree of freedom found in strongly coupled plasmas through the AdS/CFT correspondence. We formulate new evolution equations for general flows and then test them in the case of N=4 super Yang-Mills plasma by comparing their solutions alongside solutions of MIS theory with numerical computations of isotropization and boost-invariant flow based on holography. In these tests the new equations reproduce the results of MIS theory when initialized close to the hydrodynamic stage of evolution, but give a more accurate description of the dynamics when initial conditions are set in the preequilibrium regime.pl
dc.affiliationWydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiegopl
dc.affiliationWydział Fizyki, Astronomii i Informatyki Stosowanej : Zakład Technologii Gierpl
dc.contributor.authorHeller, Michal P.pl
dc.contributor.authorJanik, Romuald - 100502 pl
dc.contributor.authorSpaliński, Michałpl
dc.contributor.authorWitaszczyk, Przemysław - 173687 pl
dc.date.accessioned2015-03-13T14:52:44Z
dc.date.available2015-03-13T14:52:44Z
dc.date.issued2014pl
dc.description.number26pl
dc.description.volume113pl
dc.identifier.articleid261601pl
dc.identifier.doi10.1103/PhysRevLett.113.261601pl
dc.identifier.eissn1079-7114pl
dc.identifier.eissn1092-0145pl
dc.identifier.issn0031-9007pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/3817
dc.languageengpl
dc.language.containerengpl
dc.rightsDodaję tylko opis bibliograficzny*
dc.rights.licencebez licencji
dc.rights.uri*
dc.subtypeArticlepl
dc.titleCoupling hydrodynamics to nonequilibrium degrees of freedom in strongly interacting quark-gluon plasmapl
dc.title.journalPhysical Review Letterspl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
Relativistic hydrodynamics simulations of quark-gluon plasma play a pivotal role in our understanding of heavy ion collisions at RHIC and LHC. They are based on a phenomenological description due to Müller, Israel, Stewart (MIS) and others, which incorporates viscous effects and ensures a well-posed initial value problem. Focusing on the case of conformal plasma we propose a generalization which includes, in addition, the dynamics of the least damped far-from-equilibrium degree of freedom found in strongly coupled plasmas through the AdS/CFT correspondence. We formulate new evolution equations for general flows and then test them in the case of N=4 super Yang-Mills plasma by comparing their solutions alongside solutions of MIS theory with numerical computations of isotropization and boost-invariant flow based on holography. In these tests the new equations reproduce the results of MIS theory when initialized close to the hydrodynamic stage of evolution, but give a more accurate description of the dynamics when initial conditions are set in the preequilibrium regime.
dc.affiliationpl
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
dc.affiliationpl
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Zakład Technologii Gier
dc.contributor.authorpl
Heller, Michal P.
dc.contributor.authorpl
Janik, Romuald - 100502
dc.contributor.authorpl
Spaliński, Michał
dc.contributor.authorpl
Witaszczyk, Przemysław - 173687
dc.date.accessioned
2015-03-13T14:52:44Z
dc.date.available
2015-03-13T14:52:44Z
dc.date.issuedpl
2014
dc.description.numberpl
26
dc.description.volumepl
113
dc.identifier.articleidpl
261601
dc.identifier.doipl
10.1103/PhysRevLett.113.261601
dc.identifier.eissnpl
1079-7114
dc.identifier.eissnpl
1092-0145
dc.identifier.issnpl
0031-9007
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/3817
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Dodaję tylko opis bibliograficzny
dc.rights.licence
bez licencji
dc.rights.uri*
dc.subtypepl
Article
dc.titlepl
Coupling hydrodynamics to nonequilibrium degrees of freedom in strongly interacting quark-gluon plasma
dc.title.journalpl
Physical Review Letters
dc.typepl
JournalArticle
dspace.entity.type
Publication

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