Large-n critical behavior of O(n)×O(m) spin models
نویسندگان
چکیده
منابع مشابه
Large-n Critical Behavior of O(n) ×O(m) Spin Models
We consider the Landau-Ginzburg-Wilson Hamiltonian with O(n)×O(m) symmetry and compute the critical exponents at all fixed points to O(n−2) and to O(ǫ3) in a ǫ = 4 − d expansion. We also consider the corresponding non-linear σ-model and determine the fixed points and the critical exponents to O(ǫ̃2) in the ǫ̃ = d−2 expansion. Using these results, we draw quite general conclusions on the fixed-poi...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2001
ISSN: 0550-3213
DOI: 10.1016/s0550-3213(01)00223-1