Shot Noise in Schottky's Vacuum Tube
C. Sch\"onenberger, S. Oberholzer, E.V. Sukhorukov, and H. Grabert
TL;DR
This paper explains that shot noise in vacuum tubes is a classical phenomenon, contrasting it with quantum shot noise in mesoscopic conductors, and clarifies its origin and nature.
Contribution
It provides a detailed analysis showing shot noise in vacuum tubes is purely classical, contrasting it with quantum shot noise in mesoscopic systems.
Findings
Shot noise in vacuum tubes is a classical effect.
Quantum shot noise involves electron wave diffraction.
Historical context of Schottky's original observations.
Abstract
In these notes we discuss the origin of shot noise ('Schroteffekt') of vacuum tubes in detail. It will be shown that shot noise observed in vacuum tubes and first described by W. Schottky in 1918 is a purely classical phenomenon. This is in pronounced contrast to shot noise investigated in mesoscopic conductors which is due to quantum mechanical diffraction of electron waves.
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Taxonomy
TopicsMechanical and Optical Resonators · Carbon Nanotubes in Composites · Nanotechnology research and applications