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Related papers: Diffusion and localization in chaotic billiards

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In this paper, we study random features manifested in components of energy eigenfunctions of quantum chaotic systems, given in the basis of unperturbed, integrable systems. Based on semiclassical analysis, particularly on Berry's…

Statistical Mechanics · Physics 2023-03-31 Jiaozi Wang , Wen-ge Wang

In the thermodynamics of nanoscopic systems the relation between classical and quantum mechanical description is of particular importance. To scrutinize this correspondence we have picked out two 2-dim billiard systems. Both systems are…

Chaotic Dynamics · Physics 2022-06-08 Sebastian Rosmej , Mattes Heerwagen

Statistics of tunneling rates in the presence of chaotic classical dynamics is discussed on a realistic example: a hydrogen atom placed in parallel uniform static electric and magnetic fields, where tunneling is followed by ionization along…

Chaotic Dynamics · Physics 2009-11-10 Dominique Delande , Jakub Zakrzewski

Considering a quantized chaotic system, we analyze the evolution of its eigenstates as a result of varying a control parameter. As the induced perturbation becomes larger, there is a crossover from a perturbative to a non-perturbative…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 J. A. Mendez-Bermudez , Tsampikos Kottos , Doron Cohen

We consider classical dynamical properties of a particle in a constant gravitational force and making specular reflections with circular, elliptic or oval boundaries. The model and collision map are described and a detailed study of the…

Chaotic Dynamics · Physics 2017-06-29 D. R. da Costa , C. P. Dettmann , E. D. Leonel

We present a systematic survey of scarring and symmetry effects in the stadium billiard. The localization of individual eigenfunctions in Husimi phase space is studied first, and it is demonstrated that on average there is more localization…

Chaotic Dynamics · Physics 2009-08-14 W. E. Bies , L. Kaplan , M. R. Haggerty , E. J. Heller

We demonstrate that the energy or quasienergy level spacing distribution in dynamically localized chaotic eigenstates is excellently described by the Brody distribution, displaying the fractional power law level repulsion. This we show in…

Chaotic Dynamics · Physics 2013-07-02 Benjamin Batistić , Thanos Manos , Marko Robnik

The semiclassical theory for billiards with mixed boundary conditions is developed and explicit expressions for the smooth and the oscillatory parts of the spectral density are derived. The parametric dependence of the spectrum on the…

chao-dyn · Physics 2009-10-28 Martin Sieber , Harel Primack , Uzy Smilansky , Iddo Ussishkin , Holger Schanz

We review the random matrix theory describing elastic scattering through zero-dimensional ballistic cavities (having chaotic classical dynamics) and quasi-one dimensional disordered systems. In zero dimension, general symmetry…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Jean-Louis Pichard

We investigate the Schr\"odinger (non-relativistic) and the Dirac (``relativistic") billiards in the universal regime. The study is based on a non-ideal quantum resonant scattering numerical simulation. We show universal results that reveal…

Mesoscale and Nanoscale Physics · Physics 2019-04-02 A. F. M. Rodrigues da Silva , M. S. M. Barros , A. J. Nascimento Júnior , A. L. R. Barbosa , J. G. G. S. Ramos

Classical and quantum properties of the Bunimovich stadium in the diffusive regime are reviewed. In particular, the quantum properties are directly investigated using an approximate quantum map. Different localized regimes are found,…

Condensed Matter · Physics 2019-08-17 Fausto Borgonovi , Paolo Conti , Daniela Rebuzzi , Bambi Hu , Baowen Li

We study the response of the quasi-energy levels in the context of quantized chaotic systems through the level velocity variance and relate them to classical diffusion coefficients using detailed semiclassical analysis. The systematic…

chao-dyn · Physics 2009-10-31 Arul Lakshminarayan , Nicholas R. Cerruti , Steven Tomsovic

The purpose of this paper is to study the dynamics of a square billiard with a non-standard reflection law such that the angle of reflection of the particle is a linear contraction of the angle of incidence. We present numerical and…

Dynamical Systems · Mathematics 2015-06-03 Gianluigi Del Magno , João Lopes Dias , Pedro Duarte , José Pedro Gaivão , Diogo Pinheiro

We calculate the diffusion coefficients of persistent random walks on cubic and hypercubic lattices, where the direction of a walker at a given step depends on the memory of one or two previous steps. These results are then applied to study…

Statistical Mechanics · Physics 2013-02-07 Thomas Gilbert , Huu Chuong Nguyen , David P Sanders

We develop an analytical framework and numerical approach to obtain the coefficient of self-diffusivity for the transport of a rarefied gas in channels in the limit of large Knudsen number. This framework provides a method for determining…

Dynamical Systems · Mathematics 2021-10-01 Timothy Chumley , Renato Feres , Luis Alberto Garcia German

Friedel oscillations of electron densities near step edges have an analog in microwave billiards. A random plane wave model, normally only appropriate for the eigenfunctions of a purely chaotic system, can be applied and is tested for…

Chaotic Dynamics · Physics 2015-05-14 A. Baecker , B. Dietz , T. Friedrich , M. Miski-Oglu , A. Richter , F. Schaefer , S. Tomsovic

The long time algebraic relaxation process in spatially periodic billiards with infinite horizon is shown to display a self-similar time asymptotic form. This form is identical for a class of such billiards, but can be different in an…

Cellular Automata and Lattice Gases · Physics 2009-11-07 D. N. Armstead , B. R. Hunt , Edward Ott

The coupling of orbital and spin degrees of freedom is the source of many interesting phenomena. Here, we study the electron dynamics in a quantum billiard --a mesoscopic rectangular quantum dot-- with spin-orbit coupling driven by a…

Mesoscale and Nanoscale Physics · Physics 2013-11-13 D. V. Khomitsky , A. I. Malyshev , E. Ya. Sherman , M. Di Ventra

We study diffusion on a periodic billiard table with infinite horizon in the limit of narrow corridors. An effective trapping mechanism emerges according to which the process can be modeled by a L\'evy walk combining…

Statistical Mechanics · Physics 2014-12-03 Giampaolo Cristadoro , Thomas Gilbert , Marco Lenci , David P. Sanders

We study the low energy quantum spectra of two-dimensional rectangular billiards with a small but finite-size scatterer inside. We start by examining the spectral properties of billiards with a single pointlike scatterer. The problem is…

chao-dyn · Physics 2009-10-28 T. Shigehara , Taksu Cheon
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