Energy dependence of current noise in superconducting/normal metal junctions

Abstract

Interference of electronic waves undergoing Andreev reflection in diffusive conductors determines the energy profile of the conductance on the scale of the Thouless energy. A similar dependence exists in the current noise, but its behavior is known only in few limiting cases. We consider a metallic diffusive wire connected to a superconducting reservoir through an interface characterized by an arbitrary distribution of channel transparencies. Within the quasiclassical theory for current fluctuations we provide a general expression for the energy dependence of the current noise.

5 pages, 1 Figure

References in corpus (7)

• Doubled Full Shot Noise in Quantum Coherent Superconductor - Semiconductor Junctions
• Semiclassical theory of current correlations in chaotic dot-superconductor systems
• Theory of charge transport in diffusive normal metal / conventional superconductor point contacts
• Phase Sensitive Shot Noise in an Andreev Interferometer
• Full counting statistics of incoherent Andreev transport
• Energy dependent counting statistics in diffusive superconducting tunnel junctions
• Nonlinear shot noise in mesoscopic diffusive normal-superconducting systems

Cited by in corpus (9)

• Opportunities for mesoscopics in thermometry and refrigeration: Physics and applications
• Subgap noise of a superconductor-normal-metal tunnel interface
• Frequency dispersion of photon-assisted shot noise in mesoscopic conductors
• Full counting statistics of Andreev scattering in an asymmetric chaotic cavity
• Kondo effect and spin-active scattering in ferromagnet-superconductor junctions
• Andreev reflection eigenvalue density in mesoscopic conductors
• Energy dependence of current noise in double-barrier normal-superconducting structures
• Phase-dependent noise correlations in normal-superconducting structures
• Circuit theory for noise in incoherent normal-superconducting dot structures