Abstract
The shot-noise power in a disordered phase-coherent conductor, much longer than the mean free path but much shorter than an inelastic scattering length, is one-third of the classical value of a Poisson process. The reduction below the classical value is a consequence of noiseless open quantum channels. In conductors much longer than an inelasic length, shot noise is further suppressed due to counterbalancing voltage fluctuations which enforce charge neutrality.
- Received 3 April 1992
DOI:https://doi.org/10.1103/PhysRevB.46.1889
©1992 American Physical Society