On Calculation of 1/n Expansions of Critical Exponents in the Gross-Neveu Model with the Conformal Technique
Derkachov, S. E. · Kivel, N. A. · Stepanenko, A. S. · Vasiliev, A. N.
Original · EN
A proof of critical conformal invariance of Green's functions for a quite wide class of models possessing critical scale invariance is given. A simple method for establishing critical conformal invariance of a composite operator, which has a certain critical dimension, is also presented. The method is illustrated with the example of the Gross--Neveu model and the exponents at order 1/n³, and 1/ν at order 1/n² are calculated with the conformal bootstrap method.
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