New approach for calculating the dressed quark propagator at finite chemical potential
New approach for calculating the dressed quark propagator at finite chemical potential
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DOI：
10.1103/physrevc.71.015205
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发表时间：
2005
影响因子：
3.1
通讯作者：
H. Zong;Lei Chang;Feng-yao Hou;Wei-Min Sun;Yu-xin Liu
中科院分区：
文献类型：
--
作者：
H. Zong;Lei Chang;Feng-yao Hou;Wei-Min Sun;Yu-xin Liu
A new method for obtaining the chemical potential dependence of the dressed quark propagator in the rainbow approximation of the Dyson-Schwinger equation is developed. In the above approximation we prove that the dressed quark propagator at finite chemical potential {mu} can be written as G{sub 0}{sup -1}[{mu}]=i{gamma}{center_dot}pA(p{sup 2})+B(p{sup 2}) with p{sub {mu}}=(p{yields}p{sub 4}+i{mu}). From this the chemical potential dependence of the 'effective' two-quark condensate is evaluated. A comparison with previous results is given.
