Absence of coexisting phase of quark-antiquark and diquark condensed phases in the extended Gross-Neveu model in $2 + 1$ dimensions

Akira Niégawa

备注：: 9 pages
发表信息：: Mod.Phys.Lett.A23:933-942,2008
DOI：: 10.1142/S0217732308026960

英文摘要：

We show that the coexisting phase of quark-antiquark and diquark condensed phases is absent in the cold quark matter in the $2 + 1$ dimensional extended Gross-Neveu model, which is in sharp contrast to the case of $3 + 1$ dimensional Nambu--Jona-Lasinio model.

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