Fixed point analysis of a scalar theory with an external field

Abstract

A momentum dependent projection of the Wegner-Hougton equation is derived for a scalar theory coupled to an external field. This formalism is useful to discuss the phase diagram of the theory. In particular we study some properties of the Gaussian fixed point.

4 pages, LaTex

Cited by in corpus (5)

• Two loop results from the derivative expansion of the blocked action
• Wegner-Houghton equation and derivative expansion
• Renormalization group analysis of the three-dimensional Gross-Neveu model at finite temperature and density
• Non-perturbative scaling in the scalar theory
• Flow Equations for U_k and Z_k