Critical behavior of non-hydrodynamic quasinormal modes in a strongly coupled plasma

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Autor(es): dc.contributorUniversidade do Estado de São Paulo-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorFinazzo, Stefano I.-
Autor(es): dc.creatorRougemont, Romulo-
Autor(es): dc.creatorZaniboni, Maicon-
Autor(es): dc.creatorCritelli, Renato-
Autor(es): dc.creatorNoronha, Jorge-
Data de aceite: dc.date.accessioned2025-08-21T21:56:00Z-
Data de disponibilização: dc.date.available2025-08-21T21:56:00Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2017-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/JHEP01(2017)137-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/231393-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/231393-
Descrição: dc.descriptionWe study the behavior of quasinormal modes in a top-down holographic dual corresponding to a strongly coupled N= 4 super Yang-Mills plasma charged under a U(1) subgroup of the global SU(4) R-symmetry. In particular, we analyze the spectra of quasi-normal modes in the external scalar and vector diffusion channels near the critical point and obtain the behavior of the characteristic equilibration times of the plasma as the system evolves towards the critical point of its phase diagram. Except close to the critical point, we observe that by increasing the chemical potential one generally increases the damping rate of the quasinormal modes, which leads to a reduction of the characteristic equilibration times in the dual strongly coupled plasma. However, as one approaches the critical point the typical equilibration time (as estimated from the lowest non-hydrodynamic quasinormal mode frequency) increases, although remaining finite, while its derivative with respect to the chemical potential diverges with exponent -1/2. We also find a purely imaginary non-hydrodynamical mode in the vector diffusion channel at nonzero chemical potential which dictates the equilibration time in this channel near the critical point.-
Descrição: dc.descriptionInstituto de Física Teórica Universidade do Estado de São Paulo, Rua Dr. Bento T. Ferraz, 271-
Descrição: dc.descriptionInstituto de Física Universidade de São Paulo, Rua do Matão, 1371, Butantã-
Idioma: dc.languageen-
Relação: dc.relationJournal of High Energy Physics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectPhase Diagram of QCD-
Palavras-chave: dc.subjectQuark-Gluon Plasma-
Título: dc.titleCritical behavior of non-hydrodynamic quasinormal modes in a strongly coupled plasma-
Tipo de arquivo: dc.typelivro digital-
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