Gapless color superconductivity

被引：61

作者：

Alford, M ^{[1
]}

Berges, J ^{[1
]}

Rajagopal, K ^{[1
]}

机构：

[1] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.84.598

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 grapless color superconductivity may occur only as a metastable phase.

引用

页码：598 / 601

页数：4

共 17 条

[1]

ABRIKOSOV AA, 1961, SOV PHYS JETP-USSR, V12, P1243

[2] Color-flavor locking and chiral symmetry breaking in high density QCD [J].