Jamming anomaly in $\mathcal{P}\mathcal{T}$-symmetric systems

I. V. Barashenkov, Dmitry A. Zezyulin, Vladimir V. Konotop

The Schrödinger equation with a $\mathcal{P}\mathcal{T}$-symmetric potential is used to model an optical structure consisting of an element with gain coupled to an element with loss. At low…