We determine the crossover exponents associated with the traceless tensorial quadratic field and the third- and fourth-harmonic operators for O(n) vector models by reanalyzing the existing six-loop fixed-dimension series with the pseudo-epsilon expansion. With this approach we obtain accurate theoretical estimates that are in optimum agreement with other theoretical and experimental results.
Harmonic crossover exponents in O(n) models with the pseudo-epsilon expansion approach
Calabrese, Pasquale;
2005-01-01
Abstract
We determine the crossover exponents associated with the traceless tensorial quadratic field and the third- and fourth-harmonic operators for O(n) vector models by reanalyzing the existing six-loop fixed-dimension series with the pseudo-epsilon expansion. With this approach we obtain accurate theoretical estimates that are in optimum agreement with other theoretical and experimental results.File in questo prodotto:
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