Journal ArticleDOI
Observation of macroscopic quantum tunneling through the Coulomb energy barrier.
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At low temperature, evidence is found for macroscopic quantum tunneling of the electric charge (q-MQT) through the Coulomb energy barrier.Abstract:
The conductance of linear arrays of two and three normal-metal small tunnel junctions is studied for bias voltages V below the Coulomb-blockade threshold. At low temperature, we find evidence for macroscopic quantum tunneling of the electric charge (q-MQT) through the Coulomb energy barrier. For double junctions the tunneling rate scales as V 3 , and approximately as the product of the junction conductances, as predicted by the theory of inelastic q-MQTread more
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Journal ArticleDOI
Single-electron devices and their applications
TL;DR: In this paper, the basic physics of single-electron devices, as well as their current and prospective applications are reviewed, and some byproduct ideas which may revolutionize random access memory and digital-data-storage technologies are presented.
Book ChapterDOI
Electron Transport in Quantum Dots
Leo P. Kouwenhoven,Charles Marcus,Paul L. McEuen,Seigo Tarucha,Robert M. Westervelt,Ned S. Wingreen +5 more
TL;DR: In this article, the authors investigate the physics of electron transport through such small systems and show that such structures have similar transport properties and that one can explain their physics within one relatively simple framework.
Journal ArticleDOI
Single-electron current sources: Toward a refined definition of the ampere
Jukka P. Pekola,Olli-Pentti Saira,Ville F. Maisi,Antti Kemppinen,Mikko Möttönen,Yuri Pashkin,Dmitri V. Averin +6 more
TL;DR: In this article, a review of the physical and technical constraints that influence single-electron charge transport is presented, and a broad variety of proposed realizations are presented, some of them have already proven experimentally to nearly fulfill the demanding needs, in terms of transfer errors and transfer rate, of quantum metrology of electrical quantities, whereas some others are currently "just" wild ideas, still often potentially competitive if technical constraints can be lifted.
Journal ArticleDOI
Carbon nanotubes as Cooper pair beam splitters
L. G. Herrmann,L. G. Herrmann,L. G. Herrmann,Fabien Portier,Patrice Roche,A. Levy Yeyati,Takis Kontos,Takis Kontos,Christoph Strunk +8 more
TL;DR: By operating the carbon nanotube based double quantum dots as beam splitters, this work provides evidence for crossed Andreev reflections tunable in situ and opens an avenue to more sophisticated quantum opticslike experiments with spin entangled electrons.
Journal ArticleDOI
Electron cotunneling in a semiconductor quantum dot.
S. De Franceschi,Susumu Sasaki,J. M. Elzerman,W. G. van der Wiel,Seigo Tarucha,Seigo Tarucha,Leo P. Kouwenhoven +6 more
TL;DR: Transport measurements on a semiconductor quantum dot with a small number of confined electrons are reported and it is shown that inelastic events can occur only if the applied bias exceeds the lowest excitation energy.
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