The phase diagram of the gauge-invariant Nambu-Jona-Lasinio model
The phase diagram of the gauge-invariant Nambu-Jona-Lasinio model
复制标题
规范不变 Nambu-Jona-Lasinio 模型的相图
DOI：
10.1016/0370-2693(89)90535-2
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发表时间：
1989
影响因子：
4.4
通讯作者：
B. Pendleton
中科院分区：
文献类型：
--
作者：
S. Booth;R. Kenway;B. Pendleton
本文给出了四维U（1）规范不变Nambu-Jona-Lasinio模型中手征对称性破缺相变的结果，这些结果是用84点阵数值模拟得到的，推广了非紧QED的结果.相图是一致的预测淬火平面近似的Schwinger-Dyson方程的费米子自能。手征凝聚体的费米子质量依赖性不支持在临界区域线性外推到零质量。
Results are presented for the chiral-symmetry-breaking phase transition in the four-dimensional U(1)-gauge-invariant Nambu-Jona-Lasinio model, obtained from numerical simulations using an 84lattice, extending results for non-compact QED. The phase diagram is consistent with that predicted by the quenched planar approximation to the Schwinger-Dyson equation for the fermion self-energy. The fermion-mass dependence of the chiral condensate does not support a linear extrapolation to zero mass in the critical region.