Gapless color superconductivity
Aug, 19994 pages
Published in:
- Phys.Rev.Lett. 84 (2000) 598-601
e-Print:
- hep-ph/9908235 [hep-ph]
Report number:
- MIT-CTP-2889
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Abstract:
We present the dispersion relations for quasiparticle excitations about the color-flavor locked ground state of QCD at high baryon density. In the presence of condensates which pair light and strange quarks there need not be an energy gap in the quasiparticle spectrum. This raises the possibility of gapless color superconductivity, with a Meissner effect but no minimum excitation energy. Analysis within a toy model suggests that gapless color superconductivity may occur only as a metastable phase.- quantum chromodynamics
- excited state: quasiparticle
- dispersion relation
- color: flavor
- baryon: density
- superconductivity
- quark: condensation
- energy: gap
- critical phenomena
- numerical calculations
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