Antiferromagnetic O(N) models in four dimensions

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Ballesteros, H. G.
Carmona, J. M.
Tarancón, A.
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Elsevier Science BV
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We study the antiferromagnetic O(N). N model in the F_(4) lattice. Monte Carlo simulations are applied for investigating the behavior of the transition for N = 2,3. The numerical results show a first order nature but with a large correlation length. The N = ∞ limit is also considered with analytical methods.
© 1998 Elsevier Science B.V.We thank to the CICyT (contracts AEN94-0218, AEN96-1634) for partial financial support. We have employed for the simulations dedicated Pentium Pro machines (RTNN project). J.M. Carmona is a Spanish MEC fellow.
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