Interference of two electrons entering a superconductor
arXiv:cond-mat/9302035 · doi:10.1103/PhysRevLett.71.1625
Abstract
The subgap conductivity of a normal-superconductor (NS) tunnel junction is thought to be due to tunneling of two electrons. There is a strong interference between these two electrons, originating from the spatial phase coherence in the normal metal at a mesoscopic length scale and the intrinsic coherence of the superconductor. We evaluated the interference effect on the transport through an NS junction. We propose the layouts to observe drastic Aharonov-Bohm and Josephson effects.
8 pages REVTex, [PostScript] figures upon request