AN EFFECTIVE 3-D RIGID STRING AT THETA=PI

被引:2
|
作者
PAWELCZYK, J
机构
关键词
D O I
10.1142/S021773239400304X
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
An effective sigma model describing behavior of the 3-D rigid string with a theta-term at theta = pi is proposed. It contains nonperturbative corrections resulting from summation over different genera of the 2-D surfaces. The effective theory is the SU(2) WZW model coupled to the Nambu-Goto action. RG analysis shows the existence of an ir fixed point at which the normal to the surface has long range correlations. A similar model can describe critical behavior of the 3-D YM fields or the Ising model.
引用
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页码:3229 / 3234
页数:6
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