Harmonic crossover exponents in O(n) models with the pseudo-epsilon expansion approach
arXiv:cond-mat/0411027 · doi:10.1103/PhysRevB.71.064416
Abstract
We determine the crossover exponents associated with the traceless tensorial quadratic field, the third- and fourth-harmonic operators for O(n) vector models by re-analyzing the existing six-loop fixed dimension series with pseudo-epsilon expansion. Within this approach we obtain the most accurate theoretical estimates that are in optimum agreement with other theoretical and experimental results.
12 pages, 1 figure. Final version accepted for publication