New Method for Numerically Solving the Chemical Potential Dependence of the Dressed Quark Propagator

Details New Method for Numerically Solving the Chemical Potential Dependence of the Dressed Quark Propagator New Method for Numerically Solving the Chemical Potential Dependence of the Dressed Quark Propagator

2005-04-29

arxiv.org/abs/hep-ph/0504281v1

Phys.Rev. C72 (2005) 034901

Physics

High Energy Physics

High Energy Physics - Phenomenology

Revtex, 14 pages, 5 figures

Scientific paper

10.1103/PhysRevC.72.034901

Based on the rainbow approximation of Dyson-Schwinger equation and the assumption that the inverse dressed quark propagator at finite chemical potential is analytic in the neighborhood of $\mu=0$, a new method for obtaining the dressed quark propagator at finite chemical potential $\mu$ from the one at zero chemical potential is developed. Using this method the dressed quark propagator at finite chemical potential can be obtained directly from the one at zero chemical potential without the necessity of numerically solving the corresponding coupled integral equations by iteration methods. A comparison with previous results is given.

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