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arxiv: cond-mat/0411027 · v2 · submitted 2004-11-01 · ❄️ cond-mat.stat-mech · hep-lat

Harmonic crossover exponents in O(n) models with the pseudo-epsilon expansion approach

Pasquale Calabrese , Pietro Parruccini This is my paper
classification ❄️ cond-mat.stat-mech hep-lat
keywords approachcrossoverexpansionexponentsmodelspseudo-epsilontheoreticalaccurate
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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.

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