Critical limit and anisotropy in the two-point correlation function of three-dimensional O(N) models

@article{Campostrini1997CriticalLA,
  title={Critical limit and anisotropy in the two-point correlation function of three-dimensional O(N) models},
  author={M. Campostrini and A. Pelissetto and P. Rossi and Ettore Vicari},
  journal={EPL},
  year={1997},
  volume={38},
  pages={577-582}
}
  • M. Campostrini, A. Pelissetto, +1 author Ettore Vicari
  • Published 1997
  • Physics
  • EPL
  • 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 rotational-invariant fixed point. In non-rotational invariant physical systems with O(N)-invariant interactions, the vanishing of space-anisotropy approaching the rotational-invariant fixed point is described by a critical exponent ρ, which is universal and is related… CONTINUE READING

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