Simple exact solutions of one-dimensional finite-chain hard-core Bose-Hubbard and Fermi-Hubbard models
Abstract
Exact algebraic solutions of a one-dimensional finite-chain hard-core Bose-Hubbard model with nearest-neighbour interactions, which is related to a state-dependent nuclear pairing interaction with a nearest-state interaction approximation, are derived based on a simple algebraic approach. Further extensions to arbitrary spin cases and the corresponding Fermi-Hubbard model are also presented.
This paper has been withdrawn.