Abstract:
We propose a method for calculating the ϵ-expansion in the model of a scalar field with the φ3 interaction based on the conformal bootstrap equations. We calculate the index η in the three-loop approximation. Our result coincides with the result previously obtained by the method of renormalization group equations based on calculating a large number of Feynman diagrams.
Citation:
A. L. Pismenskii, “Calculation of the critical index η for the φ3 theory by the conformal bootstrap method”, TMF, 185:1 (2015), 179–185; Theoret. and Math. Phys., 185:1 (2015), 1516–1521