Schwinger-Dyson approach to color superconductivity in dense QCD

被引:182
作者
Hong, DK [1 ]
Miransky, VA
Shovkovy, IA
Wijewardhana, LCR
机构
[1] Pusan Natl Univ, Dept Phys, Pusan 609735, South Korea
[2] Boston Univ, Dept Phys, Boston, MA 02215 USA
[3] Bogolyubov Inst Theoret Phys, UA-252143 Kiev, Ukraine
[4] Univ Western Ontario, Dept Appl Math, London, ON N6A 5B9, Canada
[5] Univ Cincinnati, Dept Phys, Cincinnati, OH 45221 USA
关键词
D O I
10.1103/PhysRevD.61.056001
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The problem of color superconductivity in dense QCD is reconsidered in the improved rainbow approximation to the Schwinger-Dyson equation. The effect of the unscreened magnetic modes of gluons on the value of the color condensate is studied. In particular, it is shown that, at sufficiently large values of the chemical potential, these modes lead to the enhancement of the superconducting order parameter. The interplay between the instanton-induced interaction and the one-gluon-induced one in color superconductivity is discussed.
引用
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页数:12
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