Phys. Rev. D 74, 036005 (2006) [16 pages]
Pion condensation in baryonic matter: From Sarma phase to Larkin-Ovchinnikov-Fudde-Ferrell phase
Abstract
References (44)
Citing Articles
Received 26 April 2006; published 10 August 2006
We investigated two pion condensed phases in the frame of the two flavor Nambu-Jona-Lasinio model at finite baryon density: the homogeneous and isotropic Sarma phase and inhomogeneous and anisotropic Larkin-Ovchinnikov-Fudde-Ferrell (LOFF) phase. At small isospin chemical potential µI, the Sarma state is free from the Sarma instability and magnetic instability due to the strong coupling and large enough effective quark mass. At large µI, while the Sarma instability can be cured via fixing baryon density nB to be nonzero, its magnetic instability implies that the LOFF state is more favored than the Sarma state. In the intermediate µI region, the stable ground state is the Sarma state at higher nB and the LOFF state at lower nB.
©2006 The American Physical Society
| URL: |
http://link.aps.org/doi/10.1103/PhysRevD.74.036005
|
| DOI: |
10.1103/PhysRevD.74.036005 |
| PACS: |
11.30.Qc;
12.39.-x;
21.65.+f
|
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