Scale-invariance and scale-breaking in parity-invariant three-dimensional QCD

被引：17

作者：

Karthik, Nikhil ^{[1
,2
]}

Narayanan, Rajamani ^{[2
]}

机构：

[1] Brookhaven Natl Lab, Phys Dept, Upton, NY 11973 USA

[2] Florida Int Univ, Dept Phys, Miami, FL 33199 USA

来源：

PHYSICAL REVIEW D | 2018年 / 97卷 / 05期

基金：

美国国家科学基金会;

关键词：

CHIRAL-SYMMETRY-BREAKING; CRITICAL-BEHAVIOR; SU(2); FERMIONS; MATRIX;

D O I：

10.1103/PhysRevD.97.054510

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a numerical study of three-dimensional two-color QCD with N = 0, 2, 4, 8 and 12 flavors of massless two-component fermions using parity-preserving improved Wilson-Dirac fermions. A finite volume analysis provides strong evidence for the presence of Sp(N) symmetry-breaking bilinear condensate when N <= 2 and its absence for N >= 8. A weaker evidence for the bilinear condensate is shown for N = 4. We estimate the critical number of flavors below which scale-invariance is broken by the bilinear condensate to be between N = 4 and 6.

引用

页数：14

共 30 条

[1]

[Anonymous], 2007, QUANTUM FIELD THEORY, DOI DOI 10.1093/ACPROF:OSO/9780199227259.001.0001

[2] CRITICAL-BEHAVIOR IN (2+1)-DIMENSIONAL QCD [J].