Critical behavior in the site-diluted three-dimensional three-state Potts model
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2000
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American Physical Society
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Abstract
We have studied numerically the effect of quenched site dilution on a weak first-order phase transition in three dimensions. We have simulated the site diluted three-states Potts model studying in detail the secondorder region of its phase diagram. We have found that the n exponent is compatible with the one of the three-dimensional diluted Ising model, whereas the h exponent is definitely different.
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© 2000 The American Physical Society. We gratefully acknowledge discussions with D. Belanger, J. Cardy and H. Rieger. We are grateful for partial financial support from CICyT (AEN97-1708 and AEN97-1693). The computations have been carried out using the RTNN machines (Universidad de Zaragoza and Universidad Complutense de Madrid) and the ORIGIN2000 at the Centro de Supercomputación Complutense (CSC).