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Related papers: Accuracy of a mechanical single electron shuttle

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Accuracy of single-electron currents produced in hybrid turnstiles at high operation frequencies is, among other errors, limited by electrons tunnelling in the wrong direction. Increasing the barrier transparency between the island and the…

Mesoscale and Nanoscale Physics · Physics 2023-06-27 Marco Marín-Suárez , Yuri A. Pashkin , Joonas T. Peltonen , Jukka P. Pekola

Shuttling protocols designed by shortcut-to-adiabaticity techniques may suffer from perturbations and imperfect implementations. We study the motional excitation of a single ion shuttled in harmonic traps with time-dependent, "systematic"…

Quantum Physics · Physics 2022-01-20 Hilario Espinós , Javier Echanobe , Xiao-Jing Lu , Juan Gonzalo Muga

We study electron transport through a small metallic island in the perturbative regime. Using a diagrammatic real-time technique, we calculate the occupation of the island as well as the conductance through the transistor at arbitrary…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Jürgen König , Herbert Schoeller , Gerd Schön

We report an experimental technique to measure and manipulate the arrival-time and energy distributions of electrons emitted from a semiconductor electron pump, operated as both a single-electron source and a two-electron source. Using an…

Mesoscale and Nanoscale Physics · Physics 2015-11-30 J. Waldie , P. See , V. Kashcheyevs , J. P. Griffiths , I. Farrer , G. A. C. Jones , D. A. Ritchie , T. J. B. M. Janssen , M. Kataoka

We study the electrical transport of a harmonically-bound, single-molecule endohedral fullerene shuttle operating in the Coulomb blockade regime, i.e. single electron shuttling. In particular we examine the dependance of the tunnel current…

Other Condensed Matter · Physics 2009-11-11 J. Twamley , D. W. Utami , H. -S. Goan , G. J. Milburn

Numerical modeling of correlated single-electron tunneling in uniform 2D arrays of small conducting islands separated by tunnel junctions shows the possiblility of soliton-antisoliton avalanches. Though the time duration of any avalanche,…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Viktor A. Sverdlov , Daniel M. Kaplan , Alexander N. Korotkov , Konstantin K. Likharev

Charging of a clean two-dimensional island is studied in the regime of small concentration of electrons when they form the Wigner crystal. Two forms of electron-electron interaction potential are studied: the pure Coulomb interaction and…

Condensed Matter · Physics 2009-10-30 A. A. Koulakov , B. I. Shklovskii

We find that tunnel junctions are not needed to provide single electron effects in a metallic island. Eventually the tunnel junction may be replaced by an arbitrary scatterer. It is important that even a {\it diffusive} scatterer provides a…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Yuli V. Nazarov

Experiments on the direction-resolved full-counting statistics of single-electron tunneling allow testing the fundamentally important Fluctuation Theorem (FT). At the same time, the FT provides a frame for analyzing such data. Here we…

Mesoscale and Nanoscale Physics · Physics 2009-12-01 Y. Utsumi , D. S. Golubev , M. Marthaler , T. Fujisawa , Gerd Schön

We investigate electron shuttling in three-terminal nanoelectromechanocal device built on a movable metallic rod oscillating between two drains. The device shows a double-well shaped electromechanical potential tunable by a source-drain…

Mesoscale and Nanoscale Physics · Physics 2015-09-23 Taegeun Song , Leonid Y. Gorelik , Robert I. Shekhter , Mikhail N. Kiselev , Konstantin Kikoin

Electrons move along potential or thermal gradients. In the presence of a global gradient, applied e.g. to the two terminals of a conductor, this induces electric charge and heat currents. They can also flow between two equilibrated…

Mesoscale and Nanoscale Physics · Physics 2018-06-27 Rafael Sánchez

We propose an accurate clocked single-spin source for ac-spintronic applications. Our device consists of a superconducting island covered by a ferromagnetic insulator layer through which it is coupled to superconducting leads.…

Mesoscale and Nanoscale Physics · Physics 2016-09-26 Niklas Dittmann , Janine Splettstoesser , Francesco Giazotto

We report a direct detection of time correlated single-electron tunneling oscillations in a series array of small tunnel junctions. Here the current, I, is made up of a lattice of charge solitons moving throughout the array by time…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Jonas Bylander , Tim Duty , Per Delsing

We propose and analyse an autonomous engine, which combines ideas from electronic transport and self-oscillating heat engines. It is based on the electron-shuttling mechanism in conjunction with a rotational degree of freedom. We focus in…

Statistical Mechanics · Physics 2019-08-02 C. W. Wächtler , P. Strasberg , G. Schaller

It has been predicted that in the presence of a sufficiently high-dissipative environment transport in a small tunnel junction can become extremely regular, giving rise to the phenomenon of single-electron tunneling oscillations. Recent…

Mesoscale and Nanoscale Physics · Physics 2012-03-14 Carlotta Negri , Fabio Pistolesi

Trapped ions offer long internal state (spin) coherence times and strong inter-particle interactions mediated by the Coulomb force. This makes them interesting candidates for quantum simulation of coupled lattices. To this end it is…

Quantum Physics · Physics 2009-06-10 Roman Schmied , Janus H. Wesenberg , Dietrich Leibfried

We demonstrate a coherent spin shuttle through a GaAs/AlGaAs quadruple-quantum-dot array. Starting with two electrons in a spin-singlet state in the first dot, we shuttle one electron over to either the second, third or fourth dot. We…

Mesoscale and Nanoscale Physics · Physics 2019-08-02 T. Fujita , T. A. Baart , C. Reichl , W. Wegscheider , L. M. K. Vandersypen

We present transport measurements of electrons on the surface of liquid helium in a microchannel device in which a constriction may be formed by a split-gate electrode. The surface electron current passing through the microchannel first…

Mesoscale and Nanoscale Physics · Physics 2015-05-28 David Rees , Isao Kuroda , Claire Marrache-Kikuchi , Moritz Hofer , Paul Leiderer , Kimitoshi Kono

Tunneling is one of the most bizarre phenomena in quantum mechanics. An attempt to understand it led to the next natural question of how long does a particle need to tunnel a barrier. The latter gave rise to several definitions such as the…

Quantum Physics · Physics 2017-11-22 N. G. Kelkar

We observe individual tunnel events of a single electron between a quantum dot and a reservoir, using a nearby quantum point contact (QPC) as a charge meter. The QPC is capacitively coupled to the dot, and the QPC conductance changes by…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 L. M. K. Vandersypen , J. M. Elzerman , R. N. Schouten , L. H. Willems van Beveren , R. Hanson , L. P. Kouwenhoven