Pion superfluidity beyond mean field approximation in the Nambu-Jona-Lasinio model
Journal Article
·
· Physical Review. D, Particles Fields
- Physics Department, Tsinghua University, Beijing 100084 (China)
We investigate pion superfluidity in the frame of a two flavor Nambu-Jona-Lasinio model beyond mean field approximation. We calculate the thermodynamics to the next to leading order in an expansion in the inverse number of colors, including both quark and meson contributions at finite temperature and baryon and isospin density. Because of the meson fluctuations, the Sarma phase which exists at the mean field level is washed away, and the Bose-Einstein condensation region at low isospin density is highly suppressed.
- OSTI ID:
- 21308410
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 79; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Gluon condensate in a pion superfluid beyond the mean-field approximation
Nambu-Jona-Lasinio model description of weakly interacting Bose condensate and BEC-BCS crossover in dense QCD-like theories
Phase Diagram at Finite Chemical Potentials in the Nambu-Jona-Lasinio Model
Journal Article
·
Tue Mar 15 00:00:00 EDT 2011
· Physical Review. C, Nuclear Physics
·
OSTI ID:21499534
Nambu-Jona-Lasinio model description of weakly interacting Bose condensate and BEC-BCS crossover in dense QCD-like theories
Journal Article
·
Mon Nov 01 00:00:00 EDT 2010
· Physical Review. D, Particles Fields
·
OSTI ID:21503832
Phase Diagram at Finite Chemical Potentials in the Nambu-Jona-Lasinio Model
Journal Article
·
Tue May 24 00:00:00 EDT 2011
· AIP Conference Proceedings
·
OSTI ID:21516863