Asymptotically free models and discrete non-Abelian groups
نویسندگان
چکیده
منابع مشابه
Asymptotically free models and discrete non-Abelian groups
We study the two-dimensional renormalization-group flow induced by perturbations that reduce the global symmetry of the O(3) σ-model to the discrete symmetries of Platonic solids. We estimate the value of the correlation length at which differences in the behaviour of the various models should be expected. For the icosahedron model with nearest-neighbor interactions, we find ξ & 200. We provide...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2001
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(01)00674-8