Generic short-range interactions in two-leg ladders

Authors

J. E. Bunder, National Tsing-Hua University, TaiwanFollow
Hsiu-Hau Lin, National Tsing Hua University, TaiwanFollow

RIS ID

29334

Publication Details

Bunder, J. E. & Lin, H. (2009). Generic short-range interactions in two-leg ladders. Physical Review B (Condensed Matter and Materials Physics), 79 045132-1-045132-11.

Abstract

We derive a Hamiltonian for a two-leg ladder which included an arbitrary number of charge and spin interactions which must be weak but are otherwise of arbitrary strength. To illustrate the Hamiltonian we consider two examples and use a renormalization-group technique to evaluate the ground-state phases.