title: Andreev reflection eigenvalue density in mesoscopic conductors.
abstract: The energy-dependent Andreev reflection eigenvalues determine the transport properties of normal-superconducting systems. We evaluate the eigenvalue density to get insight into the formation of resonant electron-hole transport channels. The circuit-theory-like method developed can be applied to any generic mesoscopic conductor or combinations thereof. We present the results for experimentally relevant cases of a diffusive wire and a double tunnel junction.
authors.affiliation: Département de Physique Theorique, Université de Genève, CH-1211 Genéve 4, Switzerland.
authors.forename: P
authors.initials: P
authors.lastname: Samuelsson
authors.forename: W
authors.initials: W
authors.lastname: Belzig
authors.forename: Yu V
authors.initials: YV
authors.lastname: Nazarov