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Phase transitions in generalized chiral or Stiefel's models

D. Loison
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Abstract

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 O(N)/O(N-P). We show that the phase transition is clearly first order for N >= 3 when P=N and P=N-1, contrary to predictions based on the Renormalization Group in 4-εexpansion but in agreement with a recent non perturbative Renormalization Group approach.

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D. Loison. 2000-01-11. Phase transitions in generalized chiral or Stiefel's models. https://doi.org/10.1007/pl00011048

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