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arXiv · 1007.0095

Optical Probe of Quantum Shot Noise Reduction at a Single-Atom Contact

Natalia L. Schneider·Guillaume Schull·Richard Berndt
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Abstract

Visible and infra-red light emitted at a Ag-Ag(111) junction has been investigated from tunneling to single atom contact conditions with a scanning tunneling microscope. The light intensity varies in a highly nonlinear fashion with the conductance of the junction and exhibits a minimum at conductances close to the conductance quantum. The data are interpreted in terms of current noise at optical frequencies, which is characteristic of partially open transport channels.

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Natalia L. Schneider, Guillaume Schull, Richard Berndt. 2010-07-02. Optical Probe of Quantum Shot Noise Reduction at a Single-Atom Contact. https://doi.org/10.1103/physrevlett.105.026601

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