  An Andreev molecule is a system of closely spaced superconducting weak links
accommodating overlapping Andreev Bound States. Recent theoretical proposals
have considered one-dimensional Andreev molecules with a single conduction
channel. Here we apply the scattering formalism and extend the analysis to
multiple conduction channels, a situation encountered in epitaxial
superconductor/semiconductor weak links. We obtain the multi-channel bound
state energy spectrum and quantify the contribution of the microscopic
non-local processes leading to the formation of Andreev molecules.
