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cond-mat.stat-mech2002★ 2 cited
Critical behavior of vector models with cubic symmetry
P. Calabrese, A. Pelissetto, E. Vicari
We report on some results concerning the effects of cubic anisotropy and quenched uncorrelated impurities on multicomponent spin models. The analysis of the six-loop three-dimensio…
cond-mat.supr-con2002
Comment on ``Bicritical and Tetracritical Phenomena and Scaling Properties of the SO(5) Theory,'' [X. Hu, Phys. Rev. Lett. 87, 057004 (2001)]
Pasquale Calabrese, Andrea Pelissetto, Ettore Vicari
We show that, in the most general -component theory with symmetry O(n_1)+O(n_2), N=n_1+n_2\geq 3, the O(N)-symmetric fixed point has (at least) three unstable directions: the te…