TY - JOUR
T1 - Gapless two-flavor color superconductor
AU - Shovkovy, Igor
AU - Huang, Mei
N1 - Funding Information:
The authors thank Prof. D.H. Rischke for stimulating discussions that triggered this study, as well as M. Hanauske and S. Rüster for useful comments and discussions. We would like to thank Prof. H. Stöcker for his kind hospitality at the Institut für Theoretische Physik. M.H. acknowledges the financial support from Bundesministerium für Bildung und Forschung (BMBF), the Alexander von Humboldt Foundation, and the NSFC under Grant Nos. 10105005, 10135030. The work of I.A.S. was supported by Gesellschaft für Schwerionenforschung (GSI) and by Bundesministerium für Bildung und Forschung (BMBF).
PY - 2003/7/10
Y1 - 2003/7/10
N2 - A new, stable gapless two-flavor color superconducting phase that appears under conditions of local charge neutrality and β-equilibrium is revealed. In this phase, the symmetry of the ground state is the same as in the conventional two-flavor color superconductor. In the low-energy spectrum of this phase, however, there are only two gapped fermionic quasiparticles, and the other four quasiparticles are gapless. The origin and the basic properties of the gapless two-flavor color superconductor are discussed. This phase is a natural candidate for quark matter in cores of compact stars.
AB - A new, stable gapless two-flavor color superconducting phase that appears under conditions of local charge neutrality and β-equilibrium is revealed. In this phase, the symmetry of the ground state is the same as in the conventional two-flavor color superconductor. In the low-energy spectrum of this phase, however, there are only two gapped fermionic quasiparticles, and the other four quasiparticles are gapless. The origin and the basic properties of the gapless two-flavor color superconductor are discussed. This phase is a natural candidate for quark matter in cores of compact stars.
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U2 - 10.1016/S0370-2693(03)00748-2
DO - 10.1016/S0370-2693(03)00748-2
M3 - Article
AN - SCOPUS:0042562093
SN - 0370-2693
VL - 564
SP - 205
EP - 211
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 3-4
ER -