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相关论文: Random Matrix Theory of Resonances: an Overview

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Fundamental concepts in the quasi-one-dimensional geometry of disordered wires and random waveguides in which ideas of scaling and the transmission matrix were first introduced are reviewed. We discuss the use of the transmission matrix to…

无序系统与神经网络 · 物理学 2023-07-19 Zhou Shi , Matthieu Davy , Azriel Z. Genack

We investigate the distribution of roots of polynomials of high degree with random coefficients which, among others, appear naturally in the context of "quantum chaotic dynamics". It is shown that under quite general conditions their roots…

chao-dyn · 物理学 2009-10-28 E. Bogomolny , O. Bohigas , P. Leboeuf

A hypothesis about the average phase-space distribution of resonance eigenfunctions in chaotic systems with escape through an opening is proposed. Eigenfunctions with decay rate $\gamma$ are described by a classical measure that $(i)$ is…

混沌动力学 · 物理学 2019-07-31 Konstantin Clauß , Martin J. Körber , Arnd Bäcker , Roland Ketzmerick

Predicting the statistics of realistic wave-chaotic scattering systems requires, in addition to random matrix theory, introduction of system-specific information. This paper investigates experimentally one aspect of system-specific…

In this review, a model (the Random Coupling Model) that gives a statistical description of the coupling of radiation into and out of large enclosures through localized and/or distributed channels is presented. The Random Coupling Model…

混沌动力学 · 物理学 2013-03-27 Gabriele Gradoni , Jen-Hao Yeh , Bo Xiao , Thomas M. Antonsen , Steven M. Anlage , Edward Ott

We derive the explicit expression for the distribution of resonance widths in a chaotic quantum system coupled to continua via M equivalent open channels. It describes a crossover from the $\chi^2$ distribution (regime of isolated…

凝聚态物理 · 物理学 2009-10-28 Yan V. Fyodorov , H. -J. Sommers

Correspondence in quantum chaotic systems is lost in short time scales. Introducing some noise we study the spectrum of the resulting coarse grained propagaor of density matrices. Some differen methods to compute the spectrum are reviewed.…

量子物理 · 物理学 2009-11-11 Ignacio Garcia-Mata , Marcos Saraceno

Random matrix spectral correlations is a defining feature of quantum chaos. Here, we study such correlations in a minimal model of chaotic many-body quantum dynamics where interactions are confined to the system's boundary, dubbed…

量子物理 · 物理学 2024-11-27 Felix Fritzsch , Tomaž Prosen

A consistent semiquantitative theoretical analysis of electronic Raman scattering from many-electron quantum dots under resonance excitation conditions has been performed. The theory is based on random-phase-approximation-like wave…

介观与纳米尺度物理 · 物理学 2009-11-10 Alain Delgado , Augusto Gonzalez , D. J. Lockwood

Wavefunctions in chaotic and disordered quantum billiards are studied experimentally using thin microwave cavities. The chaotic wavefunctions display universal density distributions and density auto-correlations in agreement with…

chao-dyn · 物理学 2016-08-31 A. Kudrolli , V. Kidambi , S. Sridhar

We present an improved version of Berry's ansatz able to incorporate exactly the existence of boundaries and the correct normalization of the eigenfunction into an ensemble of random waves. We then reformulate the Random Wave conjecture…

混沌动力学 · 物理学 2008-01-09 Juan Diego Urbina , Klaus Richter

We compute the statistics of thermal emission from systems in which the radiation is scattered chaotically, by relating the photocount distribution to the scattering matrix - whose statistical properties are known from random-matrix theory.…

量子物理 · 物理学 2016-09-08 C. W. J. Beenakker

A simple model for open quantum systems is analyzed with Random Matrix Theory. The system is coupled to the continuum in a minimal way. In this paper we see the effect of opening the system on the level statistics, in particular the…

核理论 · 物理学 2015-01-12 Declan Mulhall

We study universal traits which emerge both in real-world complex datasets, as well as in artificially generated ones. Our approach is to analogize data to a physical system and employ tools from statistical physics and Random Matrix Theory…

机器学习 · 计算机科学 2024-04-08 Noam Levi , Yaron Oz

We analyse the structure of the distribution of eigenvalues of the stock market correlation matrix with increasing length of the time series representing the price changes. We use 100 highly-capitalized stocks from the American market and…

物理与社会 · 物理学 2009-11-11 J. Kwapien , P. Oswiecimka , S. Drozdz

We study a new statistics of wave functions in several chaotic and disordered systems: the random matrix model, band random matrix model, the Lipkin model, chaotic quantum billiard and the 1D tight-binding model. Both numerical and…

chao-dyn · 物理学 2007-05-23 Bambi Hu , Baowen Li , Weng-ge Wang

Random matrix theory is a useful tool in the study of the physics of multiple scattering systems, often striking a balance between computation speed and physical rigour. Propagation of waves through thick disordered media, as arises in for…

数学物理 · 物理学 2024-05-07 Niall Byrnes , Gary R. W. Greaves , Matthew R. Foreman

Random matrix theory can be used to describe the transport properties of a chaotic quantum dot coupled to leads. In such a description, two approaches have been taken in the literature, considering either the Hamiltonian of the dot or its…

介观与纳米尺度物理 · 物理学 2009-11-07 M L Polianski , P W Brouwer

We formulate gaussian and circular random-matrix models representing a coupled system consisting of an absorbing and an amplifying resonator, which are mutually related by a generalized time-reversal symmetry. Motivated by optical…

量子物理 · 物理学 2012-12-21 Christopher Birchall , Henning Schomerus

The random matrix ensembles (RME), especially Gaussian random matrix ensembles GRME and Ginibre random matrix ensembles, are applied to following quantum systems: nuclear systems, molecular systems, and two-dimensional electron systems…

统计力学 · 物理学 2007-05-23 Maciej M. Duras