Faculty Publications

A Parallel Algorithm For Conserving Approximations Of Lattice Models Having Both Interactions And Disorder

Document Type

Conference

Journal/Book/Conference Title

International Journal of Modern Physics B

Volume

15

Issue

24-25

First Page

3270

Last Page

3278

Abstract

We present a parallel algorithm for numerical calculations for electronic lattice models with interactions and disorder. In this scheme, diagonal and off-diagonal disorder are treated exactly per disorder configuration and interaction effects are evaluated using conserving approximations based on self-consistent perturbation theory. We demonstrate this method by calculating second-order corrections to the local pairing amplitude and specific heat for the attractive Hubbard model.

Department

Department of Physics

Original Publication Date

10-10-2001

DOI of published version

10.1142/S0217979201007610

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