Two-point correlation function of three-dimensionalO(N)models: The critical limit and anisotropy
نویسندگان
چکیده
منابع مشابه
Critical limit and anisotropy in the two - point correlation function of three - dimensional O ( N ) models
In three-dimensional O(N) models, we investigate the low-momentum behavior of the two-point Green’s function G(x) in the critical region of the symmetric phase. We consider physical systems whose criticality is characterized by a a rotationally-invariant fixed point. In non rotationally-invariant physical systems with O(N)-invariant interactions, the vanishing of anisotropy in approaching the r...
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In three-dimensional O(N) models, we investigate the low-momentum be-havior of the two-point Green’s function G(x) in the critical region of thesymmetric phase. We consider physical systems whose criticality is charac-terized by a rotational-invariant fixed point. Several approaches are exploited,such as strong-coupling expansion of lattice non-linear O(N) σ models, 1/N -exp...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 1998
ISSN: 1063-651X,1095-3787
DOI: 10.1103/physreve.57.184