Acta Physica Sinica

Critical properties of the S4 model on a special diamond-type hierarchical lattice

Xun-Chang Yin, Yin Hui, Xiang-Mu Kong, (1)曲阜师范大学物理系，曲阜 273165; (2)曲阜师范大学物理系，曲阜 273165;安庆师范学院物理系，安庆 246011

Published Jan 1, 2006• 4 citations

Abstract

Using the renormalization-group transformation and cumulative expansion technique, the phase transition and critical properties of the S4 model on a special diamond-type hierarchical lattice are studied, and its fixed points and critical exponents are obtained. The results show that there exists a Wilson-Fisher fixed point besides the Gaussian fixed point, and compared with the Gaussian model of the special diamond-type hierarchical lattices, the critical exponents have changed.

DOI: 10.7498/aps.55.4901

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