Po-Yao Chang

State-selective entanglement and point-gap topology in the unidirectional Bose-Hubbard chain

We study the effect of repulsive interactions on skin modes and entanglement in the unidirectional Bose--Hubbard model. Although the ground state of this integrable model undergoes a superfluid--Mott transition with suppressed skin accumulation, the corresponding change in entanglement depends on the selected many-body...