Duality between chiral symmetry breaking and charged pion condensation at large Nc: Consideration of an NJL2 model with baryon, isospin, and chiral isospin chemical potentials

被引：25

作者：

Ebert, D. ^{[1
]}

Khunjua, T. G. ^{[2
]}

Klimenko, K. G. ^{[3
,4
]}

机构：

[1] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany

[2] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119991, Russia

[3] NRC Kurchatov Inst, Inst High Energy Phys, State Res Ctr Russian Federat, Protvino 142281, Moscow Region, Russia

[4] Univ Dubna, Protvino Branch, Protvino 142281, Moscow Region, Russia

来源：

PHYSICAL REVIEW D | 2016年 / 94卷 / 11期

关键词：

GROSS-NEVEU MODEL; FINITE-TEMPERATURE; PHASE-DIAGRAM; DENSITY; MATTER; FIELD; QCD;

D O I：

10.1103/PhysRevD.94.116016

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper we investigate the phase structure of a (1 +/- 1)-dimensional schematic quark model with four-quark interaction and in the presence of baryon (mu(B)), isospin (mu(I)) and chiral isospin (mu(I5)) chemical potentials. It is established that in the large-N-c limit (N-c is the number of colored quarks) there exists a duality correspondence between the chiral symmetry breaking phase and the charged pion condensation (PC) one. The role and influence of this property on the phase structure of the model are studied. Moreover, it is shown that the chemical potential mu(I5) promotes the appearance of the charged PC phase with nonzero baryon density.

引用

页数：16

共 80 条

[1] Fate of pion condensation in quark matter: From the chiral limit to the physical pion mass [J].