The Gap Function Phi(k,w) for a Two-leg t-J Ladder and the Pairing Interaction
Strongly Correlated Electrons
2009-11-10 v1
Abstract
The gap function phi(k,omega), determined from a Lanczos calculation for a doped 2-leg t-J ladder, is used to provide insight into the spatial and temporal structure of the pairing interaction. It implies that this interaction is a local near-neighbor coupling which is retarded. The onset frequency of the interaction is set by the energy of an S=1 magnon-hole-pair and it is spread out over a frequency region of order the bandwith.
Keywords
Cite
@article{arxiv.cond-mat/0412186,
title = {The Gap Function Phi(k,w) for a Two-leg t-J Ladder and the Pairing Interaction},
author = {Didier Poilblanc and Douglas J. Scalapino},
journal= {arXiv preprint arXiv:cond-mat/0412186},
year = {2009}
}