Supersymmetric approximations to the 3D supersymmetric O(N) model
We develop several nonperturbative approximations for studying the dynamics of a supersymmetric O(N) model which preserve supersymmetry. We study the phase structure of the vacuum in both the leading order in large-N approximation as well as in the Hartree approximation, and derive the finite temperature renormalized effective potential. We derive the exact Schwinger-Dyson equations for the superfield Green functions and develop the machinery for going beyond the next to leading order in large-N approximation using a truncation of these equations which can also be derived from a two-particle irreducible effective action.
Physical Review D
AMERICAN PHYSICAL SOCIETY
Digital Object Identifier (DOI)
Dawson, John F.; Mihaila, B.; Berglund, Per; and Cooper, F., "Supersymmetric approximations to the 3D supersymmetric O(N) model" (2006). Physical Review D. 124.
© 2006 The American Physical Society