Electronic states in correlated three-coupled chains
arXiv:cond-mat/0005138 · doi:10.1016/S0022-3697(00)00181-5
Abstract
Three-coupled chains of quarter-filled Hubbard model with dimerization have been studied for periodic boundary conditions. By use of a renormalization group method, it is found that the interchain hopping is renormalized to zero leading to confinement when charge gap becomes larger than the effective interchain hopping energy. Such a result of confinement is compared with that of two-coupled chains.
4 pages, 4 figures, Proc. CREST Int. Workshop, Nagoya 2000, submitted to J. Phys. Chem. Solids