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Transport coefficients from the Nambu-Jona-Lasinio model for $SU(3)_f$

Abstract : We calculate the shear $\eta(T)$ and bulk viscosities $\zeta(T)$ as well as the electric conductivity $\sigma_e(T)$ and heat conductivity $\kappa(T)$ within the Nambu-Jona-Lasinio model for 3 flavors as a function of temperature as well as the entropy density $s(T)$, pressure $P(T)$ and speed of sound squared $c_s^2(T)$. We compare the results with other models such as the Polyakov-Nambu-Jona-Lasinio (PNJL) model and the dynamical quasiparticle model (DQPM) and confront these results with lattice QCD data whenever available. We find the NJL model to have a limited predictive power for the thermodynamic variables and various transport coefficients above the critical temperature whereas the PNJL model and DQPM show acceptable results for the quantities of interest.
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Contributor : Sylvie Flores <>
Submitted on : Thursday, January 9, 2014 - 12:49:00 PM
Last modification on : Tuesday, November 27, 2018 - 3:08:51 PM

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  • HAL Id : in2p3-00926278, version 1
  • ARXIV : 1311.3159


R. Marty, E. Bratkovskaya, W. Cassing, Jörg Aichelin, H. Berrehrah. Transport coefficients from the Nambu-Jona-Lasinio model for $SU(3)_f$. 14th International Conference on Strangeness in Quark Matter, Jul 2013, Birmingham, United Kingdom. ⟨in2p3-00926278⟩



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