Finite-temperature phase diagram of two-component bosons in a cubic optical lattice: Three-dimensional t-J model of hard-core bosons

Y. Nakano, T. Ishima, N. Kobayashi +3

We study the three-dimensional bosonic t-J model, i.e., the t-J model of "bosonic electrons", at finite temperatures. This model describes the $s=\frac{1}{2}$ Heisenberg spin model…