Topological Bose-Mott insulators in one-dimensional non-Hermitian superlattices
Topological Bose-Mott insulators in one-dimensional non-Hermitian superlattices
We study the topological properties of Bose-Mott insulators in one-dimensional non-Hermitian superlattices, which may serve as effective Hamiltonians for cold atomic optical systems with either two-body loss or one-body loss. We find that in the strongly repulsive limit, the Mott insulator states of the Bose-Hubbard model with a finite two-body …