中文
相关论文

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

200 篇论文

We develop the theory of a special type of scattering state in which a set of asymptotic channels are chosen as inputs and the complementary set as outputs, and there is zero reflection back into the input channels. In general an infinite…

光学 · 物理学 2020-12-09 William R. Sweeney , Chia Wei Hsu , A. Douglas Stone

We review recent research on the transport properties of classical waves through chaotic systems with special emphasis on microwaves and sound waves. Inasmuch as these experiments use antennas or transducers to couple waves into or out of…

介观与纳米尺度物理 · 物理学 2009-11-11 U. Kuhl , H. -J. Stoeckmann , R. Weaver

We review recent progress in analysing wave scattering in systems with both intrinsic chaos and/or disorder and internal losses, when the scattering matrix is no longer unitary. By mapping the problem onto a nonlinear supersymmetric…

介观与纳米尺度物理 · 物理学 2007-05-23 Y. V. Fyodorov , D. V. Savin , H. -J. Sommers

We consider wave propagation across an infinite waveguide of an arbitrary bounded cross-section, whose interior is blocked by two identical thick barriers with holes. When the holes are small, the waves over a broad range of frequencies are…

数学物理 · 物理学 2021-10-14 A. Delitsyn , D. S. Grebenkov

Bayesian inference is applied to the level fluctuations of two coupled microwave billiards in order to extract the coupling strength. The coupled resonators provide a model of a chaotic quantum system containing two coupled symmetry classes…

数据分析、统计与概率 · 物理学 2009-10-31 C. I. Barbosa , H. L. Harney

Within random matrix theory, the statistics of the eigensolutions depend fundamentally on the presence (or absence) of time reversal symmetry. Accepting the Bohigas-Giannoni-Schmit conjecture, this statement extends to quantum systems with…

混沌动力学 · 物理学 2009-11-10 S. Tomsovic , D. Ullmo , T. Nagano

Wave scattering in chaotic systems with a uniform energy loss (absorption) is considered. Within the random matrix approach we calculate exactly the energy correlation functions of different matrix elements of impedance or scattering…

混沌动力学 · 物理学 2007-05-23 D. V. Savin , Y. V. Fyodorov , H. -J. Sommers

The spectra of a microwave cylindrical resonator with the embedded thin metal rod playing the role of a singular perturbation are studied both theoretically and experimentally. The intra- and inter-mode scattering caused by the perturbation…

无序系统与神经网络 · 物理学 2013-07-18 E. M. Ganapolskii , Yu. V. Tarasov

The Random Coupling Model (RCM), introduced by Zheng, Antonsen and Ott, predicts the statistical properties of waves inside a ray-chaotic enclosure in the semi-classical regime by using Random Matrix Theory, combined with system-specific…

经典物理 · 物理学 2018-07-12 Bo Xiao , Thomas M. Antonsen , Edward Ott , Zachary B. Drikas , Jesus Gil Gil , Steven M. Anlage

A key goal of quantum chaos is to establish a relationship between widely observed universal spectral fluctuations of clean quantum systems and random matrix theory (RMT). For single particle systems with fully chaotic classical…

混沌动力学 · 物理学 2018-06-14 Pavel Kos , Marko Ljubotina , Tomaz Prosen

Coupled mode theory (CMT) is a powerful framework for decomposing interactions between electromagnetic waves and scattering bodies into resonances and their couplings with power-carrying channels. It has widespread use in few-resonance,…

光学 · 物理学 2020-10-22 Hanwen Zhang , Owen D. Miller

We consider a classically chaotic system that is described by an Hamiltonian $H(Q,P;x)$ where x is a constant parameter. Our main interest is in the case of a gas-particle inside a cavity, where $x$ controls a deformation of the boundary or…

chao-dyn · 物理学 2009-10-31 Doron Cohen , Eric J. Heller

In a recent letter [Phys. Rev. Lett. {\bf 100}, 164101 (2008)] and within the context of quantized chaotic billiards, random plane wave and semiclassical theoretical approaches were applied to an example of a relatively new class of…

介观与纳米尺度物理 · 物理学 2013-05-29 Denis Ullmo , Steven Tomsovic , Arnd Baecker

In the framework of a random matrix description of chaotic quantum scattering the positions of $S-$matrix poles are given by complex eigenvalues $Z_i$ of an effective non-Hermitian random-matrix Hamiltonian. We put forward a conjecture on…

凝聚态物理 · 物理学 2009-10-31 Yan V. Fyodorov , Mikhail Titov , H. -J. Sommers

The random matrix ensembles (RME) of quantum statistical Hamiltonian operators, {\em e.g.} Gaussian random matrix ensembles (GRME) and Ginibre random matrix ensembles (Ginibre RME), are applied to following quantum statistical systems:…

统计力学 · 物理学 2007-05-23 Maciej M. Duras

We address the question as to why, in the semiclassical limit, classically chaotic systems generically exhibit universal quantum spectral statistics coincident with those of Random Matrix Theory. To do so, we use a semiclassical resummation…

混沌动力学 · 物理学 2009-06-11 Jonathan P. Keating , Sebastian Müller

Within random matrix theory for quantum dots, both the dot's one-particle eigenlevels and the dot-lead couplings are statistically distributed. While the effect of the latter on the conductance is obvious and has been taken into account in…

介观与纳米尺度物理 · 物理学 2009-11-07 K. Held , E. Eisenberg , B. L. Altshuler

Scattering is a ubiquitous phenomenon which is observed in a variety of physical systems which span a wide range of length scales. The scattering matrix is the key quantity which provides a complete description of the scattering process.…

统计力学 · 物理学 2014-01-21 André Nock , Santosh Kumar , Hans-Jürgen Sommers , Thomas Guhr

The quantum ratchet effect in fully chaotic systems is approached by studying, for the first time, \emph{statistical} properties of the ratchet current over well-defined sets of initial states. Natural initial states in a semiclassical…

混沌动力学 · 物理学 2010-03-16 Itzhack Dana

In order to study the resonance spectra of chaotic cavities subject to some damping (which can be due to absorption or partial reflection at the boundaries), we use a model of damped quantum maps. In the high-frequency limit, the…

混沌动力学 · 物理学 2009-04-23 Stéphane Nonnenmacher , Emmanuel Schenck
‹ 上一页 1 8 9 10 下一页 ›