Scattering description of Andreev molecules

• DOI: 10.21468/scipostphyscore.2.2.009
• Publication Date: 2020-06-11T09:44:17Z
• Authors: Jean-Damien Pillet; Vincent Benzoni; Joël Griesmar; Jean-Loup Smirr; Çağlar Girit
• Keywords: Andreev reflection; Formalism (music)

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