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相关论文: Frequency dispersion of photon-assisted shot noise…

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We calculate the third cumulant of current in a chaotic cavity with contacts of arbitrary transparency as a function of frequency. Its frequency dependence drastically differs from that of the conventional noise. In addition to a dispersion…

介观与纳米尺度物理 · 物理学 2009-11-10 K. E. Nagaev , S. Pilgram , M. Buttiker

Photo-assisted transport through a mesoscopic conductor occurs when an oscillatory (AC) voltage is superposed to the constant (DC) bias which is imposed on this conductor. Of particular interest is the photo assisted shot noise, which has…

介观与纳米尺度物理 · 物理学 2010-11-18 Denis Chevallier , Thibaut Jonckheere , Elisabetta Paladino , Giuseppe Falci , Thierry Martin

A semiclassical theory is developed for time-dependent current fluctuations in mesoscopic conductors. The theory is based on the Boltzmann-Langevin equation for a degenerate electron gas. The low-frequency shot-noise power is related to…

凝聚态物理 · 物理学 2007-05-23 M. J. M. de Jong , C. W. J. Beenakker

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

The frequency-dependent shot noise in long and narrow mesoscopic diffusive contacts is numerically calculated. The case of arbitrarily strong electron-electron scattering and zero temperature of electrodes is considered. For all voltages,…

介观与纳米尺度物理 · 物理学 2009-10-31 K. E. Nagaev

A short summary of the drift-diffusion-Langevin formalism for calculating finite-frequency shot noise in diffusive conductors is presented. Two new results are included in this presentation. First, we arrive at a simple (but accurate)…

介观与纳米尺度物理 · 物理学 2007-05-23 Y. Naveh

Theoretical and experimental work concerned with dynamic fluctuations has developed into a very active and fascinating subfield of mesoscopic physics. We present a review of this development focusing on shot noise in small electric…

介观与纳米尺度物理 · 物理学 2016-08-31 Ya. M. Blanter , M. Buttiker

We perform a numerical investigation of the effect of the disorder associated with randomly located impurities on shot noise in mesoscopic cavities. We show that such a disorder becomes dominant in determining the noise behavior when the…

介观与纳米尺度物理 · 物理学 2013-08-16 Paolo Marconcini , Massimo Totaro , Giovanni Basso , Massimo Macucci

A theory of non-equilibrium (``shot'') noise and high frequency conductance in diffusive mesoscopic conductors with screening is presented. Detailed results are obtained for two simple geometries, for both large and short electron-electron…

介观与纳米尺度物理 · 物理学 2009-10-31 Y. Naveh , D. V. Averin , K. K. Likharev

We analyze high-field current fluctuations in degenerate conductors by mapping the electronic Fermi-liquid correlations at equilibrium to their semiclassical non-equilibrium form. Our resulting Boltzmann description is applicable to…

介观与纳米尺度物理 · 物理学 2009-10-31 Frederick Green , Mukunda P Das

The scattering picture of electron transport in mesoscopic conductors shows that fluctuations of the current reveal additional information on the scattering mechanism not available through the conductance alone. The electronic fluctuations…

介观与纳米尺度物理 · 物理学 2023-04-14 Matthias Hübler , Wolfgang Belzig

The frequency dependence of shot noise in mesoscopic diffusive contacts is calculated with account taken of long-range Coulomb interaction and external screening. While the low-frequency noise is 1/3 of noise of classical Poisson process…

介观与纳米尺度物理 · 物理学 2009-10-30 K. E. Nagaev

Current fluctuations are studied in a mesoscopic conductor using non-equilibrium Keldysh technique. We derive a general expression for the fluctuations in the presence of a time dependent voltage, valid for arbitrary relation between…

凝聚态物理 · 物理学 2007-05-23 B. L. Altshuler , L. S. Levitov , A. Yu. Yakovets

We present a quantum calculation based on scattering theory of the frequency dependent noise of current in an interacting chaotic cavity. We include interactions of the electron system via long range Coulomb forces between the conductor and…

介观与纳米尺度物理 · 物理学 2015-06-25 F. W. J. Hekking , J. P. Pekola

We propose a highly-scalable method to compute the statistics of charge transfer in driven conductors. The framework can be applied in situations of non-zero temperature, strong coupling to terminals and in the presence of non-periodic…

We formulate a general approach which describes statistics of current fluctuations in mesoscopic coherent conductors at arbitrary frequencies and in the presence of interactions. Applying this approach to the non-interacting case, we…

介观与纳米尺度物理 · 物理学 2013-05-29 A. V. Galaktionov , D. S. Golubev , A. D. Zaikin

The frequency dependence of the equilibrium ac conductance (or the noise power spectrum) through a mesoscopic structure is shown to exhibit steps and dips. The steps, at energies related to the resonances of the structure, are closely…

介观与纳米尺度物理 · 物理学 2009-11-11 O. Entin-Wohlman , Y. Imry , S. A. Gurvitz , A. Aharony

We study excess noise in a quantum conductor in the presence of constant voltage and alternating external field. Due to a two particle interference effect caused by Fermi correlations the noise is sensitive to the phase of the time…

凝聚态物理 · 物理学 2008-04-12 L. S. Levitov , G. B. Lesovik

We calculate the fluctuating voltage V(t) over a conductor driven out of equilibrium by a current source. This is the dual of the shot noise problem of current fluctuations I(t) in a voltage-biased circuit. In the single-channel case the…

介观与纳米尺度物理 · 物理学 2007-05-23 M. Kindermann , Yu. V. Nazarov , C. W. J. Beenakker

This is a review of shot noise, the time-dependent fluctuations in the electrical current due to the discreteness of the electron charge, in small conductors. The shot-noise power can be smaller than that of a Poisson process as a result of…

介观与纳米尺度物理 · 物理学 2008-02-03 M. J. M. de Jong , C. W. J. Beenakker
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