Unitary matrix models with a topological term and discrete time Toda equation

被引:8
|
作者
Hisakado, M
机构
[1] Grad. Sch. of Mathematical Sciences, University of Tokyo, Tokyo 113, 3-8-1 Komaba, Megro-ku
关键词
D O I
10.1016/S0370-2693(97)00067-1
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We study the full unitary matrix models, introducing a new term l log U, where l plays the role of the discrete time. On the other hand, the full unitary matrix model contains a topological term. In the continuous limit it gives rise to a phase transition at theta = pi. The ground state is characterized by the discrete time l. The discrete time l acts as the instanton number. (C) 1997 Elsevier Science B.V.
引用
收藏
页码:208 / 217
页数:10
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