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相关论文: Shot-noise of quantum chaotic systems in the class…

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We investigate shot noise for quantum dots whose classical phase space consists of both regular and chaotic regions. The noise is systematically suppressed below the universal value of fully chaotic systems, by an amount which varies with…

介观与纳米尺度物理 · 物理学 2007-05-23 H. -S. Sim , H. Schomerus

We show that in clean chaotic cavities the power of shot noise takes a universal form. Our predictions go beyond previous results from random-matrix theory, in covering the experimentally relevant case of few channels. Following a…

介观与纳米尺度物理 · 物理学 2007-05-23 Petr Braun , Stefan Heusler , Sebastian Müller , Fritz Haake

We construct a trajectory-based semiclassical theory of shot noise in clean chaotic cavities. In the universal regime of vanishing Ehrenfest time $\tE$, we reproduce the random matrix theory result, and show that the Fano factor is…

介观与纳米尺度物理 · 物理学 2007-05-23 Robert S. Whitney , Philippe Jacquod

We study shot noise for generic quantum dots coupled to two leads and allow for an arbitrary strength of diffractive impurity scattering inside the dots. The ballistic quantum dots possess a mixed classical phase space, where regular and…

介观与纳米尺度物理 · 物理学 2007-05-23 H. -S. Sim , H. Schomerus

We investigate transport properties of quantized chaotic systems in the short wavelength limit. We focus on non-coherent quantities such as the Drude conductance, its sample-to-sample fluctuations, shot-noise and the transmission spectrum,…

介观与纳米尺度物理 · 物理学 2007-05-23 Ph. Jacquod , Robert S. Whitney

This paper is devoted to study of the classical-to-quantum crossover of the shot noise value in chaotic systems. This crossover is determined by the ratio of the particle dwell time in the system, $\tau_d$, to the characteristic time for…

介观与纳米尺度物理 · 物理学 2009-10-31 Oded Agam , Igor Aleiner , Anatoly Larkin

In the framework of the random matrix approach, we apply the theory of Selberg's integral to problems of quantum transport in chaotic cavities. All the moments of transmission eigenvalues are calculated analytically up to the fourth order.…

介观与纳米尺度物理 · 物理学 2009-06-02 D. V. Savin , H. -J. Sommers , W. Wieczorek

We use the open kicked rotator to model the chaotic scattering in a ballistic quantum dot coupled by two point contacts to electron reservoirs. By calculating the system-size-over-wave-length dependence of the shot noise power we study the…

介观与纳米尺度物理 · 物理学 2007-05-23 J. Tworzydlo , A. Tajic , H. Schomerus , C. W. J. Beenakker

We investigate the shot noise for phase-coherent quantum transport in the chaotic-to-regular crossover regime. Employing the Modular Recursive Green's Function Method for both ballistic and disordered two-dimensional cavities we find the…

介观与纳米尺度物理 · 物理学 2007-05-23 F. Aigner , S. Rotter , J. Burgdorfer

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

Quantum effects are expected to disappear in the short-wavelength, semiclassical limit. As a matter of fact, recent investigations of transport through quantum chaotic systems have demonstrated the exponential suppression of the weak…

介观与纳米尺度物理 · 物理学 2015-05-30 Daniel Waltner , Jack Kuipers , Philippe Jacquod , Klaus Richter

We investigate the behavior of weak localization, conductance fluctuations, and shot noise of a chaotic scatterer in the semiclassical limit. Time resolved numerical results, obtained by truncating the time-evolution of a kicked quantum map…

介观与纳米尺度物理 · 物理学 2007-05-23 Saar Rahav , Piet W. Brouwer

We review properties of open chaotic mesoscopic systems with a finite Ehrenfest time tau_E. The Ehrenfest time separates a short-time regime of the quantum dynamics, where wave packets closely follow the deterministic classical motion, from…

介观与纳米尺度物理 · 物理学 2007-05-23 Henning Schomerus , Philippe Jacquod

We add simple tunnelling effects and ray-splitting into the recent trajectory-based semiclassical theory of quantum chaotic transport. We use this to derive the weak-localization correction to conductance and the shot-noise for a quantum…

介观与纳米尺度物理 · 物理学 2007-11-03 Robert S. Whitney

The reduction of quantum scattering leads to the suppression of shot noise. In the present paper, we analyze the crossover from the quantum transport regime with universal shot noise, to the classical regime where noise vanishes. By making…

介观与纳米尺度物理 · 物理学 2009-11-10 Eugene V. Sukhorukov , Oleg M. Bulashenko

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

Shot noise in a chaotic cavity (Lyapunov exponent $\lambda$, level spacing $\delta$, linear dimension $L$), coupled by two $N$-mode point contacts to electron reservoirs, is studied as a measure of the crossover from stochastic quantum…

介观与纳米尺度物理 · 物理学 2007-05-23 P. G. Silvestrov , M. C. Goorden , C. W. J. Beenakker

States supported by chaotic open quantum systems fall into two categories: a majority showing instantaneous ballistic decay, and a set of quantum resonances of classically vanishing support in phase space. We present a theory describing…

混沌动力学 · 物理学 2015-06-12 T. Micklitz , A. Altland

We investigate the effect of spatial symmetries on phase coherent electronic transport through chaotic quantum dots. For systems which have a spatial symmetry that interchanges the source and drain leads, we find in the framework of random…

介观与纳米尺度物理 · 物理学 2007-05-23 Victor A. Gopar , Stefan Rotter , Henning Schomerus

We investigate the behavior of the shot-noise power through quantum mechanical cavities in the semiclassical limit of small electronic wavelength. In the absence of impurity scattering, the Fano factor $F$, giving the noise to current…

介观与纳米尺度物理 · 物理学 2009-11-11 Philippe Jacquod , Robert S. Whitney
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