Surprises in nonperturbative dynamics in σ-model at finite density

被引:20
作者
Gusynin, VP [1 ]
Miransky, VA
Shovkovy, IA
机构
[1] Bogolyubov Inst Theoret Phys, UA-03143 Kiev, Ukraine
[2] Univ Western Ontario, Dept Appl Math, London, ON N6A 5B7, Canada
[3] Goethe Univ Frankfurt, Inst Theoret Phys, D-60054 Frankfurt, Germany
关键词
linear sigma-model; high density QCD; spontaneous symmetry breaking;
D O I
10.1142/S0217732304014008
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The linear SU(2)(L) x SU(2)(R) sigma-model occupies a unique place in elementary particle physics and quantum field theory. It has been recently realized that when a chemical potential for hypercharge is added, it becomes a toy model for the description of the dynamics of the kaon condensate in high density QCD. We review recent results in nonperturbative dynamics obtained in the ungauged and gauged versions of this model.
引用
收藏
页码:1341 / 1356
页数:16
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