Momentum transport in strongly coupled anisotropic plasmas in the presence of strong magnetic fields

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dc.contributor.authorFinazzo, Stefano Ivo
dc.contributor.authorCritelli, Renato
dc.contributor.authorRougemont, Romulo
dc.contributor.authorNoronha, Jorge
dc.contributor.institutionUniversidade Do Estado de São Paulo
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2022-04-29T08:45:02Z
dc.date.available2022-04-29T08:45:02Z
dc.date.issued2016-09-19
dc.description.abstractWe present a holographic perspective on momentum transport in strongly coupled, anisotropic non-Abelian plasmas in the presence of strong magnetic fields. We compute the anisotropic heavy quark drag forces and Langevin diffusion coefficients and also the anisotropic shear viscosities for two different holographic models, namely, a top-down deformation of strongly coupled N=4 super-Yang-Mills theory triggered by an external Abelian magnetic field, and a bottom-up Einstein-Maxwell-dilaton (EMD) model which is able to provide a quantitative description of lattice QCD thermodynamics with (2+1) flavors at both zero and nonzero magnetic fields. We find that, in general, energy loss and momentum diffusion through strongly coupled anisotropic plasmas are enhanced by a magnetic field being larger in transverse directions than in the direction parallel to the magnetic field. Moreover, the anisotropic shear viscosity coefficient is smaller in the direction of the magnetic field than in the plane perpendicular to the field, which indicates that strongly coupled anisotropic plasmas become closer to the perfect fluid limit along the magnetic field. We also present, in the context of the EMD model, holographic predictions for the entropy density and the crossover critical temperature in a wider region of the (T, B) phase diagram that has not yet been covered by lattice simulations. Our results for the transport coefficients in the phenomenologically realistic magnetic EMD model could be readily used as inputs in numerical codes for magnetohydrodynamics.en
dc.description.affiliationInstituto de Física Teórica Universidade Do Estado de São Paulo, Rua Dr. Bento T. Ferraz, 271
dc.description.affiliationInstituto de Física Universidade de São Paulo, Rua do Matão, 1371, Butantã
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2015/00240-7
dc.identifierhttp://dx.doi.org/10.1103/PhysRevD.94.054020
dc.identifier.citationPhysical Review D, v. 94, n. 5, 2016.
dc.identifier.doi10.1103/PhysRevD.94.054020
dc.identifier.issn2470-0029
dc.identifier.issn2470-0010
dc.identifier.scopus2-s2.0-84990928848
dc.identifier.urihttp://hdl.handle.net/11449/231386
dc.language.isoeng
dc.relation.ispartofPhysical Review D
dc.sourceScopus
dc.titleMomentum transport in strongly coupled anisotropic plasmas in the presence of strong magnetic fieldsen
dc.typeArtigo

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