# 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 $c_s^2(T)$. 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.
Document type :
Journal articles
Domain :

http://hal.in2p3.fr/in2p3-00919710
Contributor : Sylvie Flores <>
Submitted on : Tuesday, December 17, 2013 - 11:21:46 AM
Last modification on : Tuesday, November 27, 2018 - 3:08:50 PM

### Citation

Rudy Marty, Elena Bratkovskaya, Wolfgang Cassing, Jörg Aichelin, Hamza Berrehrah. Transport coefficients from the Nambu-Jona-Lasinio model for $SU(3)_f$. Physical Review C, American Physical Society, 2013, 88, pp.045204. ⟨10.1103/PhysRevC.88.045204⟩. ⟨in2p3-00919710⟩

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