Bulk viscosity of hot quark plasma from non-equilibrium statistical operator

  • We provide a discussion of the bulk viscosity of two-flavor quark plasma, described by the Nambu–Jona-Lasinio model, within the framework of Kubo-Zubarev formalism. This discussion, which is complementary to our earlier study, contains a new, detailed derivation of the bulk viscosity in the case of multiple conserved charges. We also provide some numerical details of the computation of the bulk viscosity close to the Mott transition line, where the dissipation is dominated by decays of mesons into quarks and their inverse processes. We close with a summary of our current understanding of this quantity, which stresses the importance of loop resummation for obtaining the qualitatively correct result near the Mott line

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Author:Arus Harutyunyan, Armen Sedrakian
Parent Title (English):Particles
Place of publication:Basel
Document Type:Article
Year of Completion:2018
Date of first Publication:2018/06/18
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2019/10/23
Tag:bulk viscosity; correlation functions; statistical operator; transport coefficients
Page Number:18
First Page:212
Last Page:229
This is an open access article distributed under the Creative Commons Attribution License https://creativecommons.org/licenses/by/4.0/ which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoCreative Commons - Namensnennung 4.0