Nearest-Neighbor Tunneling Ansatz in the Bose-Hubbard Mode
arXiv:2309.03915 · doi:10.54503/18291171-2023.16.2-3
Abstract
A recently introduced recurrence-relation ansatz applied to the Jaynes-Cummings-Hubbard model is here applied to the Bose-Hubbard model that reduced the model to an easily soluble model. The results obtained for the two-point density correlations resemble somewhat those obtained recently also but in a much more complicated fashion. Our ansatz may be of value for the solution of many-body quantum mechanical problems.