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Jafar Sadeghi

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId:
Faculty: Science
Address:
Phone: 9111125092

Research

Title
Thermodynamical Properties of Quark-Gluon Plasma and Effects of Bulk Viscosity
Type
JournalPaper
Keywords
Equation of state, Bulk viscosity, Quark-gluon plasma, Thermodynamical quantity, Cosmological quantity
Year
2012
Journal International Journal of Theoretical Physics
DOI
Researchers S.Mohammad Motevalli ، Jafar Sadeghi ، B. H. Mohammadi

Abstract

In this paper, we use equation of state, temperature and bulk viscosity of the quark gluon plasma and calculate some cosmological and thermodynamical quantities. In order to obtain such quantities we choose special case of energy density in terms of Hubble parameter. We apply the approximation solution and obtain the exact form of scale factor, temperature and bulk viscous stress. Finally, we draw some figures for the geometric and thermodynamic quantities in terms of time