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Electron-vibron coupling in quantum dots can lead to a strong suppression of the average current in the sequential tunneling regime. This effect is known as Franck-Condon blockade and can be traced back to an overlap integral between vibron…

介观与纳米尺度物理 · 物理学 2016-11-16 Patrick Haughian , Stefan Walter , Andreas Nunnenkamp , Thomas L. Schmidt

For a non-superconducting system, the electronic tunneling current through an insulating barrier is calculated, including interaction effects. The exact Hamiltonian of the full system is projected onto the subspaces of the "left" and…

介观与纳米尺度物理 · 物理学 2010-07-09 Kelly R. Patton

We consider the unidirectional particle transport in a suspension of colloidal particles which interact with each other via a pair potential having a hard-core repulsion plus an attractive tail. The colloids are confined within a long…

软凝聚态物质 · 物理学 2011-06-24 Andrey Pototsky , Andrew J. Archer , Sergey E. Savel'ev , Uwe Thiele , Fabio Marchesoni

Effects of a coupling between the mechanical vibrations of a quantum dot placed between the two leads of a single electron transistor and coherent tunneling of electrons through a single level in the dot has been studied. We have found that…

介观与纳米尺度物理 · 物理学 2009-11-07 D. Fedorets , L. Y. Gorelik , R. I. Shekhter , M. Jonson

We report finite-bias characteristics of electrical transport through phosphorus donors in silicon nanoscale transistors, in which we observe inelastic-cotunneling current in the Coulomb blockade region. The cotunneling current appears like…

介观与纳米尺度物理 · 物理学 2023-01-25 Pooja Yadav , Soumya Chakraborty , Daniel Moraru , Arup Samanta

Molecular dynamics simulations are used to assess the influence of Coulomb coupling on the energy evolution of charged projectiles in the classical one-component plasma. The average projectile kinetic energy is found to decrease linearly…

等离子体物理 · 物理学 2019-09-04 David J. Bernstein , Scott D. Baalrud , Jerome Daligault

{Analytical equations like Richardson-Dushman's or Shockley's provided a general, if simplified conceptual background, which was widely accepted in conventional electronics and made a fundamental contribution to advances in the field. In…

介观与纳米尺度物理 · 物理学 2023-12-12 Ioan Baldea

We report on the charge carrier dynamics in single lateral quantum dot molecules and the effect of an applied electric field on the molecular states. Controllable electron tunneling manifests itself in a deviation from the typical excitonic…

介观与纳米尺度物理 · 物理学 2012-02-29 C. Hermannstädter , G. J. Beirne , M. Witzany , M. Heldmaier , J. Peng , G. Bester , L. Wang , A. Rastelli , O. G. Schmidt , P. Michler

The spin-polarized transport through two-level quantum dots weakly coupled to ferromagnetic leads is considered theoretically in the Coulomb blockade regime. It is assumed that the dot is doubly occupied, so that the current flows due to…

介观与纳米尺度物理 · 物理学 2015-06-25 Ireneusz Weymann

We report on dynamical quantum transport simulations for realistic molecular devices based on an approximate formulation of time-dependent Density Functional Theory with open boundary conditions. The method allows for the computation of…

介观与纳米尺度物理 · 物理学 2013-09-16 Christian Oppenländer , Björn Korff , Thomas A. Niehaus

We investigate non-equilibrium transport properties of a quantum dot in the Coulomb blockade regime under the condition of negligible inelastic scattering during the dwelling time of the electrons in the dot. Using the quantum kinetic…

介观与纳米尺度物理 · 物理学 2023-11-17 George McArdle , Rose Davies , Igor V. Lerner , Igor V. Yurkevich

We study the effect of a dot-lead interaction on transport through a quantum dot hybridized to two semi-infinite Luttinger-liquid leads. A bosonization approach is applied to treat the interaction between charge fluctuations on the dot and…

介观与纳米尺度物理 · 物理学 2015-05-20 Florian Elste , David R. Reichman , Andrew J. Millis

Electron transport in a quantum wire with leads is investigated with actual Coulomb interaction taken into account. The latter includes both the direct interaction of electrons with each other and their interaction via the image charges…

介观与纳米尺度物理 · 物理学 2009-10-31 V. A. Sablikov , B. S. Shchamkhalova

Negative differential conductivity (NDC) is a widely exploited effect in modern electronic components. Here, a proof-of-principle is given for the observation of NDC in a quantum transport device for neutral atoms employing a multi-mode…

量子气体 · 物理学 2017-08-24 Ralf Labouvie , Bodhaditya Santra , Simon Heun , Sandro Wimberger , Herwig Ott

A deep understanding of the correlation between electronic and mechanical degrees of freedom is crucial to the development of quantum devices in a nanoelectromechanical system (NEMS). In this work, we first establish a fully quantum…

介观与纳米尺度物理 · 物理学 2025-05-14 Chengjie Wu , Yi Ding , Yiying Yan , Yuguo Su , Elijah Omollo Ayieta , Slobodan Radošević , Georg Engelhardt , Gernot Schaller , JunYan Luo

We investigated the peculiarities of non-equilibrium charge configurations in the system of two strongly coupled quantum dots (QDs) weakly connected to the reservoirs in the presence of Coulomb correlations. We revealed that total electron…

介观与纳米尺度物理 · 物理学 2014-09-23 V. N. Mantsevich , N. S. Maslova , P. I. Arseyev

We have analyzed Coulomb drag between currents of interacting electrons in two parallel one-dimensional conductors of finite length $L$ attached to external reservoirs. For strong coupling, the relative fluctuations of electron density in…

凝聚态物理 · 物理学 2009-10-31 Vadim Ponomarenko , Dmitri Averin

Time-dependent driving with ultrashort voltage pulses brings quantum conductors into the non-adiabatic transport regime, where novel dynamical effects emerge. An example of this physics occurs in interferometric systems, where the…

介观与纳米尺度物理 · 物理学 2026-04-17 Lucas Mazzella , Seddik Ouacel , Inès Safi

A mobile Coulomb gas permeating a fixed background crystalline lattice of charged colloidal crystals is subject to an electrostatic-elastic coupling, which we study on the continuum level by introducing a minimal coupling between…

软凝聚态物质 · 物理学 2025-02-14 Hao Wu , Zhong-Can Ou-Yang , Rudolf Podgornik

Current-driven vibrational non-equilibrium induces vibrational sidebands in single-molecule transistors which arise from tunneling processes accompanied by absorption of vibrational quanta. Unlike conventional sidebands, these absorption…

介观与纳米尺度物理 · 物理学 2008-03-27 Matthias C. Lüffe , Jens Koch , Felix von Oppen
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