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cond-mat.stat-mech2004
Harmonic crossover exponents in O(n) models with the pseudo-epsilon expansion approach
Pasquale Calabrese, Pietro Parruccini
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 ex…
cond-mat.stat-mech2004
Critical behavior of two-dimensional cubic and MN models in the five-loop renormalization-group approximation
P. Calabrese, E. V. Orlov, D. V. Pakhnin +1
The critical thermodynamics of the two-dimensional N-vector cubic and MN models is studied within the field-theoretical renormalization-group (RG) approach. The beta functions and…