Faddeev eigenfunctions for point potentials in two dimensions
arXiv:1110.3157 · doi:10.1016/j.physleta.2012.02.025
Abstract
We present explicit formulas for the Faddeev eigenfunctions and related generalized scattering data for point (delta-type) potentials in two dimensions. In particular, we obtain the first explicit examples of such eigenfunctions with contour singularity in spectral parameter at a fixed real energy.
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