Andreev reflection eigenvalue density in mesoscopic conductors
arXiv:cond-mat/0312133 · doi:10.1103/PhysRevLett.92.196807
Abstract
The energy-dependent Andreev reflection eigenvalues determine the transport properties of normal-superconducting systems. We evaluate the eigenvalue density to get an insight into 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.
5 pages, 3 figures