QCD quark condensate in external magnetic fields

被引：461

作者：

Bali, G. S. ^{[1
,2
]}

Bruckmann, F. ^{[1
]}

Endrodi, G. ^{[1
]}

Fodor, Z. ^{[3
,4
,5
]}

Katz, S. D. ^{[4
]}

Schaefer, A. ^{[1
]}

机构：

[1] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

[2] Tata Inst Fundamental Res, Dept Theoret Phys, Bombay 400005, Maharashtra, India

[3] Berg Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany

[4] Eotvos Lorand Univ, Inst Theoret Phys, H-1117 Budapest, Hungary

[5] Forschungszentrum Julich, Julich Supercomp Ctr, D-52425 Julich, Germany

来源：

PHYSICAL REVIEW D | 2012年 / 86卷 / 07期

关键词：

NEVEU MODEL; SYMMETRY; TRANSITION; THERMODYNAMICS; PARTICLE; GAUGE; GROSS;

D O I：

10.1103/PhysRevD.86.071502

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a comprehensive analysis of the light condensates in QCD with 1 + 1 + 1 sea quark flavors (with mass-degenerate light quarks of different electric charges) at zero and nonzero temperatures of up to 190 MeV and external magnetic fields B < 1 GeV2/e. We employ stout smeared staggered fermions with physical quark masses and extrapolate the results to the continuum limit. At low temperatures we confirm the magnetic catalysis scenario predicted by many model calculations while around the crossover the condensate develops a complex dependence on the external magnetic field, resulting in a decrease of the transition temperature.

引用

页数：6

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