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

被引：89

作者：

Schneider, Natalia L. ^{[1
]}

Schull, Guillaume ^{[2
]}

Berndt, Richard ^{[1
]}

机构：

[1] Univ Kiel, Inst Expt & Angew Phys, D-24098 Kiel, Germany

[2] Univ Strasbourg, CNRS, Inst Phys & Chim Mat Strasbourg, UMR 7504, F-67034 Strasbourg, France

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 02期

关键词：

SCANNING TUNNELING MICROSCOPE; SIZE METALLIC CONTACTS; MESOSCOPIC CONDUCTORS; LOCALIZED SCATTERERS; SPATIAL VARIATION; PHOTON-EMISSION; POINT CONTACTS; LIGHT-EMISSION; PLASMON MODES; FLUCTUATIONS;

D O I：

10.1103/PhysRevLett.105.026601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Visible and infrared 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.

引用

页数：4

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