Five-loop ϵ expansion for O(n)×O(m) spin models
نویسندگان
چکیده
منابع مشابه
Se p 20 03 Five - loop ǫ expansion for O ( n ) × O ( m ) spin models
We compute the Renormalization Group functions of a Landau-GinzburgWilson Hamiltonian with O(n)×O(m) symmetry up to five-loop in Minimal Subtraction scheme. The line n+(m,d), which limits the region of secondorder phase transition, is reconstructed in the framework of the ǫ = 4 − d expansion for generic values of m up to O(ǫ5). For the physically interesting case of noncollinear but planar orde...
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We compute the Renormalization Group functions of a Landau-GinzburgWilson Hamiltonian with O(n)×O(m) symmetry up to five-loop in Minimal Subtraction scheme. The line n+(m,d), which limits the region of secondorder phase transition, is reconstructed in the framework of the ǫ = 4 − d expansion for generic values of m up to O(ǫ5). For the physically interesting case of noncollinear but planar orde...
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We study the critical behavior of frustrated spin systems with noncollinear orderings by the effective Landau-Ginzburg-Wilson Hamiltonian with O(n)×O(m) symmetry. We compute the field-theoretic expressions of the Renormalization Group functions up to five loop in the framework of the ǫ = 4−d expansion. The line n+(m,d) which limits the region of second-order phase transition is reconstructed fo...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2004
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2003.12.002