Phase transitions and spectral singularities in a class of one-dimensional parity-time-symmetric complex potentials

Jinlin Fan, Feilong Wang, Ruolin Chai Zhibin Zhao +1

We investigate a two-parametric family of one-dimensional non-Hermitian complex potentials with parity-time ($\mathcal{P}\mathcal{T}$) symmetry. We find that there exist two distinct types o…