Fate of Two-Particle Bound States in the Continuum in non-Hermitian
Systems
Fate of Two-Particle Bound States in the Continuum in non-Hermitian
Systems
We unveil the existence of two-particle bound state in the continuum (BIC) in a one-dimensional interacting nonreciprocal lattice with a generalized boundary condition. By applying the Bethe-ansatz method, we can exactly solve the wavefunction and eigenvalue of the bound state in the continuum band, which enable us to precisely determine …