Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Resummed hydrodynamic expansion for a plasma of particles interacting with fields

Texto completo
Autor(es):
Tinti, L. [1, 2] ; Vujanovic, G. [1] ; Noronha, J. [3] ; Heinz, U. [1, 4, 5]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Ohio State Univ, Dept Phys, 174 W 18th Ave, Columbus, OH 43210 - USA
[2] Goethe Univ Frankfurt, Inst Theoret Phys, Max von Laue Str 1, D-60438 Frankfurt - Germany
[3] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo - Brazil
[4] GSI Helmholtzzentrum Schwerionenforsch, ExtreMe Matter Inst EMMI, Planckstr 1, D-64291 Darmstadt - Germany
[5] CERN, Theoret Phys Dept, CH-1211 Geneva 23 - Switzerland
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: Physical Review D; v. 99, n. 1 JAN 7 2019.
Citações Web of Science: 1
Resumo

A novel description of kinetic theory dynamics is proposed in terms of resummed moments that embed information of both hydrodynamic and nonhydrodynamic modes. The resulting expansion can be used to extend hydrodynamics to higher orders in a consistent and numerically efficient way; at lowest order it reduces to an Israel-Stewart-like theory. This formalism is especially suited to investigate the general problem of particles interacting with fields. We tested the accuracy of this approach against the exact solution of the coupled Boltzmann-Vlasov-Maxwell equations for a plasma in an electromagnetic field undergoing Bjorken-like expansion, including extreme cases characterized by large deviations from local equilibrium and large electric fields. We show that this new resummed method maintains the fast convergence of the traditional method of moments. We also find a new condition, unrelated to Knudsen numbers and pressure corrections, that justifies the truncation of the series even in situations far from local thermal equilibrium. (AU)

Processo FAPESP: 17/05685-2 - Física hadrônica em colisões nucleares de altas energias
Beneficiário:Jun Takahashi
Linha de fomento: Auxílio à Pesquisa - Temático
Processo FAPESP: 16/13517-0 - Propriedades topológicas e de transporte em materiais quirais
Beneficiário:Gustavo Machado Monteiro
Linha de fomento: Bolsas no Brasil - Pós-Doutorado