Staggered Flux Phase in a Model of Strongly Correlated Electrons
Strongly Correlated Electrons
2009-11-07 v4
Abstract
We present numerical evidence for the existence of a staggered flux (SF) phase in the half-filled two-leg t-U-V-J ladder, with true long-range order in the counter-circulating currents. The density-matrix renormalization-group (DMRG) / finite-size scaling approach, generalized to describe complex-valued Hamiltonians and wavefunctions, is employed. The SF phase exhibits robust currents at intermediate values of the interaction strength.
Keywords
Cite
@article{arxiv.cond-mat/0202188,
title = {Staggered Flux Phase in a Model of Strongly Correlated Electrons},
author = {J. B. Marston and J. O. Fjaerestad and Asle Sudbo},
journal= {arXiv preprint arXiv:cond-mat/0202188},
year = {2009}
}
Comments
Version to appear in Phys. Rev. Lett