Modeling superconducting states of arbitrary pairing symmetry with the fluctuation exchange approximation applied to Hubbard-like models
Physical Review B - Condensed Matter and Materials Physics
We present an algorithm for microscopic modeling of superconducting states of arbitrary pairing symmetry via an implementation of self-consistent perturbation theory, the fluctuation exchange approximation (FLEX), applied to Hubbard-like models. Like the original formulation of FLEX, all ring diagrams that are generated with the bare interaction vertex are included in the generating functional for the self-energy. Thus, this algorithm is suitable for FLEX-based Hubbard model calculations in both the attractive and repulsive cases. © 2009 The American Physical Society.
Original Publication Date
DOI of published version
Deisz, J. J. and Slife, T., "Modeling superconducting states of arbitrary pairing symmetry with the fluctuation exchange approximation applied to Hubbard-like models" (2009). Faculty Publications. 2213.