FINITE TEMPERATURE EQUATIONS OF STATE FOR MIXED STARS

2004 ◽  
Vol 13 (07) ◽  
pp. 1249-1253
Author(s):  
DÉBORA P. MENEZES ◽  
C. PROVIDÊNCIA
Keyword(s):  
Field Theory ◽  
Neutron Stars ◽  
Quark Matter ◽  
Finite Temperature ◽  
Equations Of State ◽  
Mean Field Theory ◽  
Mean Field ◽  
Relativistic Mean Field Theory ◽  
Relativistic Mean Field

We investigate the properties of mixed stars formed by hadronic and quark matter in β-equilibrium described by appropriate equations of state (EOS) in the framework of relativistic mean-field theory. The calculations were performed for T=0 and for finite temperatures and also for fixed entropies with and without neutrino trapping in order to describe neutron and proto-neutron stars. The star properties are discussed. Maximum allowed masses for proto-neutron stars are much larger when neutrino trapping is imposed.

scholarly journals Chiral Symmetry Restoration for Quark Matter with a Chiral Chemical Potential

2017 ◽  
Vol 45 ◽  
pp. 1760044 ◽  
Author(s):  
Ricardo L. S. Farias ◽  
Dyana C. Duarte ◽  
Gastão Krein ◽  
Rudnei O. Ramos
Keyword(s):  
Chiral Symmetry ◽  
Quark Matter ◽  
Finite Temperature ◽  
Chemical Potential ◽  
Separation Scheme ◽  
Chiral Symmetry Restoration ◽  
Chiral Transition

In this work we study the chiral transition in quark matter at finite temperature and in the presence of a chiral imbalance in the Nambu–Jona-Lasinio model. We use the Medium Separation Scheme (MSS) to rewrite divergent momentum integrals that appear in the model in such way that we can conciliate results obtained with the model and recent lattice results for the chiral transition.

scholarly journals COLLECTIVE MODES IN COLOR SUPERCONDUCTING MATTER

2002 ◽  
Vol 17 (06n07) ◽  
pp. 904-913 ◽  
Author(s):  
IGOR A. SHOVKOVY
Keyword(s):  
Quark Matter ◽  
Finite Temperature ◽  
Collective Modes ◽  
Kaon Condensation ◽  
Goldstone Bosons ◽  
Dense Quark Matter

The properties of plasmons, Nambu-Goldstone bosons and gapless Carlson-Goldman collective modes in color-flavor locked phase of color superconducting dense quark matter at finite temperature are reviewed. A possibility of a kaon condensation with an abnormal number of the NG bosons is also discussed.

scholarly journals Quark matter and quark stars at finite temperature in Nambu–Jona-Lasinio model

2017 ◽  
Vol 77 (8) ◽  
Author(s):  
Peng-Cheng Chu ◽  
Xiao-Hua Li ◽  
Bin Wang ◽  
Yu-Min Dong ◽  
Yu-Yue Jia ◽  
...  
Keyword(s):  
Quark Matter ◽  
Finite Temperature ◽  
Quark Stars
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