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

14th International Conference on Strangeness in Quark Matter

Marty, R.^1 ; Bratkovskaya, E.^1 ; Cassing, W.^2 ; Aichelin, J.^3 ; Berrehrah, H.^1

Frankfurt Institut for Advanced Studies, Institute for Theoretical Physics, Johann Wolfgang Goethe Universität, Frankfurt am Main, Germany^1

Institut fur Theoretische Physik, Universität Gießen, Gießen, Germany^2

Subatech, UMR 6457, Université de Nantes, Nantes, France^3

关键词: Bulk viscosity;    Entropy density;    Lattice QCD;    Nambu-Jona-Lasinio model;    Quasi particles;    Transport coefficient;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/509/1/012052/pdf
DOI  :  10.1088/1742-6596/509/1/012052

来源: IOP

【 摘 要 】

We calculate the shear η(T) and bulk viscosities ζ(T) as well as the electric conductivity σe(T) and heat conductivity κ(T) within the Nambu-Jona-Lasinio (NJL) model for 3 flavors as a function of temperature as well as the entropy density s(T), pressure P(T) and speed of sound c2s(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. This work is based on Ref. [1].