Prefer a chat interface with context about you and your work?
Ground-state competition of two-component bosons in an optical lattice near a Feshbach resonance
We investigate the ground state properties of an equal mixture of two species of bosons in its Mott-insulator phase at a filling factor two per site. We identify one type of spin triplet-singlet transition through the competition of ground state. When the on-site interaction is weak ($U<U_c$) the two particles …