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We continue to develop a new approach to description of charge kinetics in disordered semiconductors. It is based on fractional diffusion equations. This article is devoted to transient processes in structures under dispersive transport…

无序系统与神经网络 · 物理学 2013-10-02 Renat T. Sibatov , Vladimir V. Uchaikin

Spin and charge currents can be generated by an ac voltage through a one-channel quantum wire with strong electron interactions in a static uniform magnetic field. In a certain range of low voltages, the spin current can grow as a negative…

介观与纳米尺度物理 · 物理学 2009-11-11 Bernd Braunecker , D. E. Feldman

A theory is developed to describe the coupled transport of energy and charge in networks of electron donor-acceptor sites which are seated in a thermally heterogeneous environment, where the transfer kinetics are dominated by Marcus-type…

介观与纳米尺度物理 · 物理学 2019-08-02 Galen T. Craven , Abraham Nitzan

A simple theory of electromechanical transduction for single-charge-carrier double-layer electroactuators is developed, in which the ion distribution and curvature are mutually coupled. The obtained expressions for the dependence of…

软凝聚态物质 · 物理学 2012-12-11 Alpha A. Lee , Ralph H. Colby , Alexei A. Kornyshev

We extend the ab initio molecular dynamics (AIMD) method based on density functional theory to the nonequilibrium situation where an electronic current is present in the electronic system. The dynamics is treated using the semi-classical…

介观与纳米尺度物理 · 物理学 2020-05-27 Jing-Tao Lu , Susanne Leitherer , Nick R. Papior , Mads Brandbyge

Charges and fields in a straight, infinite, cylindrical wire carrying a steady current are determined in the rest frames of ions and electrons, starting from the standard assumption that the net charge per unit length is zero in the lattice…

综合物理 · 物理学 2015-06-03 Dragan V. Redzic

There has been much interest in developing methods for transferring quantum information. We discuss a way to transfer quantum information between two trapped ions through a wire. The motion of a trapped ion induces oscillating charges in…

量子物理 · 物理学 2015-05-13 N. Daniilidis , T. Lee , R. Clark , S. Narayanan , H. Häffner

This is the first of a series of papers devoted to develop a microscopical approach to the dipole emission process and its relation to coherent transport in random media. In this Letter, we deduce general expressions for the decay rate of…

光学 · 物理学 2009-03-12 M. Donaire

In this article, the self-inductance of a circular circuit is treated from an untraditional, particle-based point of view. The electromagnetic fields of Faraday induction are calculated explicitly from the point-charge fields derived from…

经典物理 · 物理学 2014-08-19 Timothy H. Boyer

It is certain that electrical properties-whether slow (sec) or fast (nsec), even optical (fsec)-are described by Maxwell's equations, and there are terms that depend on the rate of change of the electric and magnetic fields. In particular,…

经典物理 · 物理学 2024-08-27 David K. Ferry , Xavier Oriols , Robert Eisenberg

In the present contribution we show that the introduction of a conserved axial current in electrodynamics can explain the quantization of electric charge, preserving parity conservation, and introduces a dynamical discreteness into…

高能物理 - 理论 · 物理学 2007-05-23 S. C. S. Silva , P. C. R. C. Mello , M. C. Nemes

Here we study incoherent transport through molecular wire treated as a linear chain of absorbers, where the phase-breaking processes are modeled by the use of imaginary point-like potentials. The calculations are performed within a…

介观与纳米尺度物理 · 物理学 2015-06-25 Kamil Walczak

We study a voltage-driven quantum point contact (QPC) strongly coupled to a qubit. We predict pronounced observable features in the QPC current that can be interpreted in terms of half-integer charge transfers. Our analysis is based on the…

介观与纳米尺度物理 · 物理学 2009-11-13 I. Snyman , Y. V. Nazarov

It has been thought that the long chiral edge channels cannot support any supercurrent between the superconducting electrodes. We show theoretically that the supercurrent can be mediated by a non-local interaction that facilitates a…

介观与纳米尺度物理 · 物理学 2017-05-03 Xiao-Li Huang , Yuli V. Nazarov

In this paper we report the theory describing the electro-osmotic flow in charged nanopores with constant radius and charge density driven by alternating current. We solve the ion and solution transport in unsteady conditions as described…

化学物理 · 物理学 2018-10-17 J. Catalano , P. M. Biesheuvel

We study the flow of an electrically charged fluid through an elastic and porous medium. A three continuum model consisting of an elastic solid, a viscous fluid, and a mobile charge continuum is used. The relevant laws of physics are…

软凝聚态物质 · 物理学 2024-03-19 Jiashi Yang

A quantum theory for mesoscopic electric circuits in accord with the discreteness of electric charges is proposed. On the basis of the theory, Schr\"{o}dinger equation for the quantum LC-design and L-design is solved exactly. The…

凝聚态物理 · 物理学 2009-10-28 You-Quan Li , Bin Chen

The most common mathematical models for electrolyte flows are based on the dilute solution assumption, leading to a coupled system of the Nernst--Planck--Poisson drift-diffusion equations for ion transport and the Stokes resp.…

In spirit of the principle of least action, which means that when a perturbation is applied to a physical system its reaction is such that it modifies its state to "agree" with the perturbation by "minimal" change of its initial state. In…

等离子体物理 · 物理学 2015-07-29 Alexander Rokhlenko

We examine critically the idea that fractional charges may carry electrical current in a conductor, much as do the normal electrons in a metallic Fermi liquid. We explore a range of issues that have gained the status of indispensability for…

介观与纳米尺度物理 · 物理学 2007-05-23 M. P. Das , F. Green