Gauge equivalence and inverse scattering for long-range magnetic potentials

Abstract

For Schroedinger operators with long-range magnetic vector potentials and short-range electric scalar potentials in an exterior domain $\Omega$ in ${\mathbf{R}}^n$ with $n\ge 2$, we show that there is a one-to-one correspondence between the gauge equivalent classes of Hamiltonians and those of S-matrices if $\Omega$ is exterior to a bounded convex obstacle.