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arXiv · 1007.1497

Phase Structure of a Four- and Eight-Fermion Interaction Model at Finite Temperature and Chemical Potential in Arbitrary Dimensions

Masako Hayashi·Tomohiro Inagaki·Wataru Sakamoto
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Abstract

The phase structure of a four- and eight-fermion interaction model is investigated at finite temperature and chemical potential in arbitrary space-time dimensions, $2\leq D<4$. The effective potential and the gap equation are calculated in the leading order of the 1/N expansion. If the first order phase transition takes place, the phase boundary dividing the symmetric and the broken phase is modified by the eight-fermion interaction.

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Masako Hayashi, Tomohiro Inagaki, Wataru Sakamoto. 2010-07-09. Phase Structure of a Four- and Eight-Fermion Interaction Model at Finite Temperature and Chemical Potential in Arbitrary Dimensions. https://doi.org/10.1142/s0217751x10050627

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