论文标题
Quark-Gluon等离子体中的A0-浓度，具有有限的BARYON密度
A0--condensation in quark-gluon plasma with finite baryon density
论文作者
论文摘要
在本文中，我们在有限温度下自发生成$ a_0 $ background字段的问题，还包括夸克化学势，$μ$。我们使用相同的形式主义来重现伯努利的多项式多项式的已知表达。然后，我们计算出$μ$依赖性，包括小$μ$作为扩展，以及数值$ $ $ $。 结果是，化学势仅弱改变凝结场的值，但强烈加深了有效电位的最小值。根据尼尔森的身份讨论了凝结的规格依赖性。它也以波利科夫的循环表示。这两种表示都可以保证凝结现象的规格不变性。另外，我们讨论了在有效电位对化学电位的最小值中，多柯夫环的依赖性。
In the present paper, we return to the problem on a spontaneous generation of the $A_0$-background field in QCD at finite temperature and include in addition a quark chemical potential, $μ$. We reproduce the known expressions in terms of Bernoulli's polynomials for the gluons and quarks using the same formalism. Then we calculate the $μ$-dependence, both for small $μ$ as expansion, and numerically for finite $μ$. One result is that the chemical potential only weakly changes the values of the condensed field, but quite strongly deepens the minima of the effective potential. The gauge dependence of the condensation is discussed in terms of Nielsen's identity. It also is expressed in terms of Polyakov's loop. Both these representations guarantee gauge invariance of the condensation phenomenon. Also, we discuss the dependence of the Polyakov loop in the minimum of the effective potential on the chemical potential.
