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相关论文: A relationship between electron transfer rates and…

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We discuss the effective donor/acceptor coupling for a bridged electron transfer system with a site-diagonal disorder of bridge energies. The average spectral properties of the system are discussed by using the Wegner model (Anderson's type…

凝聚态物理 · 物理学 2009-10-30 Ewa Gudowska-Nowak , Gabor Papp , Juergen Brickmann

We report a fully microscopic theory for transconductivity, or, equivalently, momentum transfer rate, of Coulomb coupled electron systems. We use the Kubo linear response formalism, and our main formal result expresses the transconductivity…

凝聚态物理 · 物理学 2009-10-28 Karsten Flensberg , Ben Yu-Kuang Hu , Antti-Pekka Jauho , Jari M. Kinaret

We suggest universal expressions for the rates of charge transition between molecules in organic disordered semiconductors, which differ between electrons and holes. The donor and acceptor molecules (monomers) are represented in terms of…

无序系统与神经网络 · 物理学 2015-08-17 E. D. Gutliansky , Nir Tesler , Uri Peskin

The possibility of using single molecule junctions as electron pumps for energy conversion and storage is considered. It is argued that the small dimensions of these systems enable to make use of unique intra-molecular quantum coherences in…

量子物理 · 物理学 2015-05-20 Roie Volkovich , Uri Peskin

An interaction of electromagnetic field with a nanostructure composed of two quantum dots is studied theoretically. An effect of a resonant electron transfer between the localized low-lying states of quantum dots is predicted. A necessary…

介观与纳米尺度物理 · 物理学 2009-10-31 Leonid A. Openov

Understanding of charge transport mechanisms in nanoscale structures is essential for the development of molecular electronic devices. Charge transport through 1D molecular systems connected between two contacts is influenced by several…

介观与纳米尺度物理 · 物理学 2015-05-18 Daijiro Nozaki , Horacio M. Pastawski , Gianaurelio Cuniberti

We theoretically analyzed inelastic effects in the electron transport through molecular junctions originating from electron-vibron interactions. The molecular bridge was simulated by a periodic chain of identical interacting hydrogen-like…

材料科学 · 物理学 2010-01-03 Natalya A. Zimbovskaya , Maija M. Kuklja

We present measurements of the rates for an electron to tunnel on and off a quantum dot, obtained using a quantum point contact charge sensor. The tunnel rates show exponential dependence on drain-source bias and plunger gate voltages. The…

介观与纳米尺度物理 · 物理学 2013-05-29 K. MacLean , S. Amasha , Iuliana P. Radu , D. M. Zumbuhl , M. A. Kastner , M. P. Hanson , A. C. Gossard

In this review we consider those processes in condensed matter that involve the irreversible flow of energy between electrons and nuclei that follows from a system being taken out of equilibrium. We survey some of the more important…

材料科学 · 物理学 2007-05-23 A. P. Horsfield , D. R. Bowler , H. Ness , C. G. Sanchez , T. N. Todorov , A. J. Fisher

Building upon traditional quantum chemistry calculations, we have implemented an {\em ab-initio} method to study the electrical transport in nanocontacts. We illustrate our technique calculating the conductance of C$_{60}$ molecules…

介观与纳米尺度物理 · 物理学 2009-11-07 J. J. Palacios , A. J. Perez-Jimenez , E. Louis , J. A. Verges

Electronic transport across n-Si-alkyl monolayer/Hg junctions is, at reverse and low forward bias, independent of alkyl chain-length from 18 down to 1 or 2 carbons! This and further recent results indicate that electron transport is…

We investigate the role of quantum coherence in modulating the energy transfer rate between two independent energy donors and a single acceptor participating in an excitonic energy transfer process. The energy transfer rate depends…

化学物理 · 物理学 2015-07-13 Sreenath K. Manikandan , Anil Shaji

The influence of the charging effects on the transport characteristics of a molecular wire bridging two metallic electrodes in the limit of weak contacts is studied by generalized Breit-Wigner formula. Molecule is modeled as a quantum dot…

化学物理 · 物理学 2009-11-10 Kamil Walczak

We consider correlated transfer ionization in relativistic collisions between a highly charged ion and a light atom. In this process two quasi-free electrons of the atom interact with each other during the short collision time that results…

原子物理 · 物理学 2015-06-18 O. Yu. Andreev , E. A. Mistonova , A. B. Voitkiv

The trend to fabricate electrical circuits on nanoscale dimensions has led to impressive progress in the field of molecular electronics in the last decade. A theoretical description of molecular contacts as the building blocks of future…

介观与纳米尺度物理 · 物理学 2015-03-19 Denis Kast , Lars Kecke , Joachim Ankerhold

Electron transport through molecular bridge shows novel quantum features. Propogation of electronic wave function through molecular bridge is completely different than individual atomic bridge employed between two contacts. In case of…

介观与纳米尺度物理 · 物理学 2011-12-07 Muhammad Imran

Biomolecular machines are protein complexes that convert between different forms of free energy. They are utilized in nature to accomplish many cellular tasks. As isothermal nonequilibrium stochastic objects at low Reynolds number, they…

统计力学 · 物理学 2020-01-22 Aidan I Brown , David A Sivak

A path integral approach has been generalized for the non-relativistic electron charge transfer processes. The charge transfer - the capture of an electron by an ion passing another atom or more generally the problem of rearrangement…

量子物理 · 物理学 2009-11-07 N. Laskin , I. Tomski

We study the Coulomb drag effect in double layer electronic systems with local tunneling links. The possibility of tunneling between the layers leads to a pronounced exchange contribution to the transconductance, which is negative and…

凝聚态物理 · 物理学 2009-10-30 Yuval Oreg , Alex Kamenev

The effect of a thermal environment on electron (or hole) transfer through molecular bridges and on the electron conduction properties of such bridges is studied. Our steady state formalism based on an extension of the Redfield theory (D.…

凝聚态物理 · 物理学 2009-11-07 Dvira Segal , Abraham Nitzan