Lowest eigenvalues of the Dirac operator for two color QCD at nonzero chemical potential

被引：9
|
作者：
Bittner, E [1 ]
Lombardo, MP
Markum, H
Pullirsch, R
机构：
[1] Vienna Tech Univ, Atominst, A-1040 Vienna, Austria
[2] Ist Nazl Fis Nucl, Sez Padova, Trento, Italy
[3] Grp Collegato Trento, Trento, Italy
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2002年 / 106卷
基金：
奥地利科学基金会;
关键词：
D O I：
10.1016/S0920-5632(01)01749-2
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We investigate the eigenvalue spectrum of the staggered Dirac matrix in SU(3) and U(1) gauge theory as well as in full QCD with two colors and finite chemical potential. Along the strong-coupling axis up to the phase transition, the low-lying Dirac spectrum of these quantum field theories is well described by random matrix theory and exhibits universal behavior. Related results for gauge theories with minimal coupling are discussed in the chirally symmetric phase and no universality is seen for the microscopic spectral densities.
引用
收藏
页码：468 / 470
页数：3
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