The BEG Model in the Disordered Region and at the Antiquadrupolar-Disordered Line of Parameters
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We analyse the d-dimensional BEG model with \(d\ge 2\) and parameters in the disordered region and at the antiquadrupolar-disordered line. We obtain a subset of these regions for which the odd correlation functions are zero and the even ones decay exponentially fast, at all non-zero temperatures, for a wide class of boundary conditions.
KeywordsBEG model Disordered region Antiquadrupolar-disordered line High temperature representation Exponential decay of correlations
I would like to thank Aernout van Enter for reading the manuscript and the anonymous referees for their patience and their valuable suggestions and comments which much contributed for improving this article.
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