Extended Bose-Hubbard model with dipolar and contact interactions
Extended Bose-Hubbard model with dipolar and contact interactions
We study the phase diagram of the one-dimensional boson gas trapped inside an optical lattice with contact and dipolar interaction, taking into account next-nearest terms for both tunneling and interaction. Using the density-matrix renormalization group, we calculate how the locations of phase transitions change with increasing dipolar interaction strength for …