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相关论文: Moments of the transmission eigenvalues, proper de…

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We give an analytic proof of the asymptotic behaviour of the moments of moments of the characteristic polynomials of random symplectic and orthogonal matrices. We therefore obtain alternate, integral expressions for the leading order…

数学物理 · 物理学 2024-12-03 J. C. Andrade , C. G. Best

Within a random matrix theory approach, we obtain spectral statistics of the Wigner time delay matrix $Q$, for arbitrary channels number $M$ and for all symmetry classes, in fact for general Dyson parameter $\beta$. We also put forth two…

混沌动力学 · 物理学 2022-08-18 Marcel Novaes

Using the concept of minimal chaotic cavities, we give the distribution of the proper delay times of $Q=-i\hbar S^\dagger \frac{\partial S}{\partial E}$ at the spectrum edge with a scattering matrix $S$ belonging to circular ensembles CE.…

无序系统与神经网络 · 物理学 2015-06-12 Adel Abbout

We develop a new variant of the wave-packet analysis and solve the tunneling time problem for one particle. Our approach suggests an individual asymptotic description of the quantum subensembles of transmitted and reflected particles both…

量子物理 · 物理学 2007-05-23 N. L. Chuprikov

We consider the conductance distributions in chaotic mesoscopic cavities for all three invariant classes of random matrices for the arbitrary number of channels N1, N2 in the connecting leads. We show that the Laplace transforms of the…

介观与纳米尺度物理 · 物理学 2011-05-24 Santosh Kumar , Akhilesh Pandey

We establish large deviation formulas for linear statistics on the $N$ transmission eigenvalues $\{T_i\}$ of a chaotic cavity, in the framework of Random Matrix Theory. Given any linear statistics of interest $A=\sum_{i=1}^N a(T_i)$, the…

介观与纳米尺度物理 · 物理学 2015-05-14 Pierpaolo Vivo , Satya N. Majumdar , Oriol Bohigas

We apply the framework developed in the preceding paper in this series (Smilansky 2017 J. Phys. A: Math. Theor. 50, 215301) to compute the time-delay distribution in the scattering of ultra short radio frequency pulses on complex networks…

数学物理 · 物理学 2018-01-23 Uzy Smilansky , Holger Schanz

In a quantum dot with three leads the transmission matrix t_{12} between two of these leads is a truncation of a unitary scattering matrix S, which we treat as random. As the number of channels in the third lead is increased, the…

介观与纳米尺度物理 · 物理学 2009-11-11 Steven H. Simon , Aris L. Moustakas

In this note we give a combinatorial and non-computational proof of the asymptotics of the integer moments of the moments of the characteristic polynomials of Haar distributed unitary matrices as the size of the matrix goes to infinity.…

概率论 · 数学 2020-02-18 Theodoros Assiotis , Jonathan P. Keating

We consider $S$-matrix correlation functions for a chaotic cavity having $M$ open channels, in the absence of time-reversal invariance. Relying on a semiclassical approximation, we compute the average over $E$ of the quantities ${\rm…

混沌动力学 · 物理学 2015-07-21 Marcel Novaes

The environment of a quantum dot, which is connected to two leads, is modeled by telegraph noise, i.e. random Markovian jumps of the (spinless) electron energy on the dot between two levels. The temporal evolutions of the charge on the dot…

介观与纳米尺度物理 · 物理学 2016-09-21 Shmuel Gurvitz , Amnon Aharony , Ora Entin-Wohlman

This is the third paper in a series analyzing the asymptotic distribution of the phase shifts in the semiclassical limit. We analyze the distribution of phase shifts, or equivalently, eigenvalues of the scattering matrix, $S_h(E)$, for…

偏微分方程分析 · 数学 2015-09-14 Jesse Gell-Redman , Andrew Hassell

We investigate the statistical distribution of transmission eigenvalues in phase-coherent transport through quantum dots. In two-dimensional ab-initio simulations for both clean and disordered two-dimensional cavities, we find markedly…

介观与纳米尺度物理 · 物理学 2007-05-23 Stefan Rotter , Florian Aigner , Joachim Burgdörfer

In the customary random matrix model for transport in quantum dots with $M$ internal degrees of freedom coupled to a chaotic environment via $N\ll M$ channels, the density $\rho$ of transmission eigenvalues is computed from a specific…

概率论 · 数学 2021-06-15 László Erdős , Torben Krüger , Yuriy Nemish

We review the ideas of how random matrix theory has to be properly applied to quantum physics; particularly we focus on how the spectrum has to be properly prepared and the random matrix correctly identified before the random matrix and the…

量子物理 · 物理学 2026-04-28 Mario Kieburg

We show that it is possible to transmit and preserve information at short time scales over an n-fold composition of quantum channels $(\Xi^n)_{n \in \mathbb{N}}$ modelled as a discrete quantum Markov semigroup, long enough to generate…

量子物理 · 物理学 2025-09-04 Archishna Bhattacharyya

We bring together the semiclassical approximation, matrix integrals and the theory of symmetric polynomials in order to solve a long standing problem in the field of quantum chaos: to compute transport moments when tunnel barriers are…

介观与纳米尺度物理 · 物理学 2022-07-04 Lucas H. Oliveira , Pedro H. S. Bento , Marcel Novaes

We show that the distribution of (a suitable rescaling of) a single eigenvalue gap $\lambda_{i+1}(M_n)-\lambda_i(M_n)$ of a random Wigner matrix ensemble in the bulk is asymptotically given by the Gaudin-Mehta distribution, if the Wigner…

概率论 · 数学 2012-09-03 Terence Tao

We define a random model for the moments of the new eigenfunctions of a point scat-terer on a 2-dimensional rectangular flat torus. In the deterministic setting,Seba conjectured these moments to be asymptotically Gaussian, in the…

数学物理 · 物理学 2021-03-05 Thomas Letendre , Henrik Ueberschär

We discuss the properties of eigenphases of S--matrices in random models simulating classically chaotic scattering. The energy dependence of the eigenphases is investigated and the corresponding velocity and curvature distributions are…

chao-dyn · 物理学 2009-10-28 Petr Seba , Karol Zyczkowski , Jakub Zakrzewski