Asymptotics of spectral gaps of 1D Dirac operator with two exponential terms potential

Berkay Anahtarci, Plamen Djakov

The one-dimensional Dirac operator \begin{equation*} L = i \begin{pmatrix} 1 & 0 \\ 0 & -1 \end{pmatrix} \frac{d}{dx} +\begin{pmatrix} 0 & P(x) \\ Q(x) & 0 \end{pmatrix}, \quad P,Q…