Revised phase diagram of the Gross-Neveu model
Revised phase diagram of the Gross-Neveu model
复制标题
Gross-Neveu 模型的修订相图
DOI：
10.1103/physrevd.67.125015
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发表时间：
2003
影响因子：
5
通讯作者：
Konrad Urlichs
中科院分区：
文献类型：
--
作者：
M. Thies;Konrad Urlichs
我们证实了先前的暗示，传统的相图的离散手征Gross-Neveu模型在大N极限是不足的非零化学势。本文给出了用平均场理论构造的修正相图。它有三种不同的相，包括一个扭结-抗扭结晶体相。所有的转换都是二阶的。Gross-Neveu模型中重子物质新结构的驱动机制是在费米面形成能隙的Overhauser型不稳定性。
We confirm earlier hints that the conventional phase diagram of the discrete chiral Gross-Neveu model in the large N limit is deficient at non-zero chemical potential. We present the corrected phase diagram constructed in mean field theory. It has three different phases, including a kink-antikink crystal phase. All transitions are second order. The driving mechanism for the new structure of baryonic matter in the Gross-Neveu model is an Overhauser type instability with gap formation at the Fermi surface.