scholarly journals Phase diagram of three-flavor quark matter under compact star constraints

2005 ◽  
Vol 72 (6) ◽  
Author(s):  
D. Blaschke ◽  
S. Fredriksson ◽  
H. Grigorian ◽  
A. M. Öztaş ◽  
F. Sandin
Keyword(s):  
Phase Diagram ◽  
Quark Matter ◽  
Compact Star

Phase diagram of non-local chiral quark models under compact star conditions

2007 ◽  
Author(s):  
D. Gómez Dumm ◽  
A. G. Grunfeld ◽  
N. N. Scoccola
Keyword(s):  
Phase Diagram ◽  
Compact Star ◽  
Non Local ◽  
Quark Models

Chiral condensate of cold dense quark matter with external magnetic field

2020 ◽  
Vol 35 (19) ◽  
pp. 2050160
Author(s):  
Song Shi ◽  
Juan Liu
Keyword(s):  
Magnetic Field ◽  
Phase Diagram ◽  
External Magnetic Field ◽  
Quark Matter ◽  
Chemical Potential ◽  
Field Approximation ◽  
Chiral Condensate ◽  
Mean Field Approximation ◽  
Dynamical Mass ◽  
Dense Quark Matter

At zero temperature and finite chemical potential, the gap equation of cold dense quark matter under external magnetic field is studied with NJL model in the mean-field approximation. By introducing new methods, it is found that the Nambu phase has sophisticated structures which have not been studied before. As a consequence, the phase diagram is expanded and divided into five areas, in each area the condensate has unique behaviors with chemical potential varying. Furthermore, the expanded phase diagram is used to predict the order of phase transition between the Nambu phase and the Wigner phase, it can also be used to explain the relations of dynamical mass and chemical potential. Meanwhile, the metastable states and cascade effect of dynamical mass are studied in this paper.

scholarly journals Deconfinement signals from pulsar timing

2000 ◽  
Vol 177 ◽  
pp. 603-604 ◽  
Author(s):  
Hovik Grigorian ◽  
Gevorg Poghosyan ◽  
Edvard Chubarian ◽  
David Blaschke
Keyword(s):  
General Relativity ◽  
Quark Matter ◽  
Compact Star ◽  
Baryon Number ◽  
Rotational Frequency ◽  
Compact Stars ◽  
Pulsar Timing

AbstractThe occurence of a quark matter core in rotating compact stars has been investigated within general relativity as a function of both the rotational frequency and the total baryon number. We demonstrate that the deviation of the braking index fromn= 3 signals not only the occurence but also the size of a quark matter core in a pulsar. We suggest that in systems with mass accretion onto a rapidly rotating compact star a spin-down to spin-up transition might signal a deconfinement transition in its interior.

scholarly journals Fluctuations in cool quark matter and the phase diagram of quantum chromodynamics

2019 ◽  
Vol 99 (7) ◽  
Author(s):  
Robert D. Pisarski ◽  
Vladimir V. Skokov ◽  
Alexei M. Tsvelik
Keyword(s):  
Phase Diagram ◽  
Quantum Chromodynamics ◽  
Quark Matter

Nuclear-matter—quark-matter phase diagram with strangeness

1989 ◽  
Vol 40 (1) ◽  
pp. 157-164 ◽  
Author(s):  
H. W. Barz ◽  
B. L. Friman ◽  
J. Knoll ◽  
H. Schulz
Keyword(s):  
Phase Diagram ◽  
Nuclear Matter ◽  
Quark Matter ◽  
Matter Phase
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