Phase transitions in generalized chiral or Stiefel's models
Institut für Theoretische Physik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin,
Published online: 15 June 2000
We study the phase transition in generalized chiral or Stiefel's models using Monte Carlo simulations. These models are characterized by a breakdown of symmetry . We show that the phase transition is clearly first order for when P=N and , contrary to predictions based on the renormalization group in expansion but in agreement with a recent non perturbative renormalization group approach.
PACS: 05.50.+q – Lattice theory and statistics (Ising, Potts, etc.) / 75.10.Hk – Classical spin models / 05.70.Fh – Phase transitions: general studies
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000