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相关论文: Near-extreme eigenvalues and the first gap of Herm…

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We characterize the phenomenon of "crowding" near the largest eigenvalue $\lambda_{\max}$ of random $N \times N$ matrices belonging to the Gaussian $\beta$-ensemble of random matrix theory, including in particular the Gaussian orthogonal…

数学物理 · 物理学 2016-01-08 Anthony Perret , Gregory Schehr

This paper studies the extreme gaps between eigenvalues of random matrices. We give the joint limiting law of the smallest gaps for Haar-distributed unitary matrices and matrices from the Gaussian unitary ensemble. In particular, the kth…

概率论 · 数学 2013-07-25 Gérard Ben Arous , Paul Bourgade

We study the fluctuations of the largest eigenvalue $\lambda_{\max}$ of $N \times N$ random matrices in the limit of large $N$. The main focus is on Gaussian $\beta$-ensembles, including in particular the Gaussian orthogonal ($\beta=1$),…

统计力学 · 物理学 2015-05-29 Satya N. Majumdar , Gregory Schehr

We study the distribution of eigenvalues of almost-Hermitian random matrices associated with the classical Gaussian and Laguerre unitary ensembles. In the almost-Hermitian setting, which was pioneered by Fyodorov, Khoruzhenko and Sommers in…

概率论 · 数学 2023-05-30 Yacin Ameur , Sung-Soo Byun

A family of random matrix ensembles interpolating between the GUE and the Ginibre ensemble of $n\times n$ matrices with iid centered complex Gaussian entries is considered. The asymptotic spectral distribution in these models is uniform in…

概率论 · 数学 2010-03-23 Martin Bender

We study the probability distribution function $P(\lambda)$ of the largest eigenvalue $\lambda_{\rm max}$ of $N \times N$ random matrices of the form $H + V$, where $H$ belongs to the GOE/GUE ensemble and $V$ is a full rank deterministic…

统计力学 · 物理学 2025-10-14 Pierre Le Doussal

We compute exact asymptotic results for the probability of the occurrence of large deviations of the largest (smallest) eigenvalue of random matrices belonging to the Gaussian orthogonal, unitary and symplectic ensembles. In particular, we…

统计力学 · 物理学 2009-11-13 David S. Dean , Satya N. Majumdar

We study the density of states (DOS) for disordered systems whose spectral statistics can be described by a Gaussian ensemble of almost diagonal Hermitian random matrices. The matrices have independent random entries $ H_{i \geq j} $ with…

无序系统与神经网络 · 物理学 2016-08-31 Oleg Yevtushenko , Vladimir E. Kravtsov

We investigate the statistics of the largest eigenvalue, $\lambda_{\rm max}$, in an ensemble of $N\times N$ large ($N\gg 1$) sparse adjacency matrices, $A_N$. The most attention is paid to the distribution and typical fluctuations of…

统计力学 · 物理学 2023-06-14 Bogdan Slavov , Kirill Polovnikov , Sergei Nechaev , Nikita Pospelov

In this work, we study some statistical properties of the extreme eigenstates of the randomly-weighted adjacency matrices of random graphs. We focus on two random graph models: Erd\H{o}s-R\'{e}nyi (ER) graphs and random geometric graphs…

无序系统与神经网络 · 物理学 2025-06-17 C. T Martínez Martínez , J. A. Méndez Bermúdez

We provide a quantitative analysis of the phenomenon of crowding of near-extreme events by computing exactly the density of states (DOS) near the maximum of a set of independent and identically distributed random variables. We show that the…

统计力学 · 物理学 2007-05-23 Sanjib Sabhapandit , Satya N. Majumdar

Motivated by recently discovered relations between logarithmically correlated Gaussian processes and characteristic polynomials of large random $N \times N$ matrices $H$ from the Gaussian Unitary Ensemble (GUE), we consider the problem of…

数学物理 · 物理学 2016-09-28 Yan V. Fyodorov , Nicholas J. Simm

The probabilities for gaps in the eigenvalue spectrum of finite $ N\times N $ random unitary ensembles on the unit circle with a singular weight, and the related hermitian ensembles on the line with Cauchy weight, are found exactly. The…

数学物理 · 物理学 2016-09-07 N. S. Witte , P. J. Forrester

We survey a number of models from physics, statistical mechanics, probability theory and combinatorics, which are each described in terms of an orthogonal polynomial ensemble. The most prominent example is apparently the Hermite ensemble,…

概率论 · 数学 2007-05-23 Wolfgang Koenig

We calculate analytically the probability of large deviations from its mean of the largest (smallest) eigenvalue of random matrices belonging to the Gaussian orthogonal, unitary and symplectic ensembles. In particular, we show that the…

统计力学 · 物理学 2009-11-11 David S. Dean , Satya N. Majumdar

We calculate the exact density of states (DOS) for the three classical and two non-classical Random Matrix Ensembles for finite matrix size N using supersymmetric integrals. The 1/N-Expansion yields already in lowest order good…

无序系统与神经网络 · 物理学 2009-11-07 Frieder Kalisch , Daniel Braak

The focus of this survey paper is on the distribution function for the largest eigenvalue in the finite N Gaussian ensembles (GOE,GUE,GSE) in the edge scaling limit of N->infinity. These limiting distribution functions are expressible in…

solv-int · 物理学 2008-02-03 Craig A. Tracy , Harold Widom

Using thermodynamic arguments we find that the probability that there are no eigenvalues in the interval (-s,\infty) in the double scaling limit of Hermitean matrix models is O(exp(-s^{2m+1})) as s\to+\infty.Here m=1,2,3.. determine the…

高能物理 - 理论 · 物理学 2009-10-28 Yang Chen , Kasper J. Eriksen , Craig A. Tracy

We show that in a sample of size $n$ from a GEM$(0,\theta)$ random discrete distribution, the gaps $G_{i:n}:= X_{n-i+1:n} - X_{n-i:n}$ between order statistics $X_{1:n} \le \cdots \le X_{n:n}$ of the sample, with the convention $G_{n:n} :=…

概率论 · 数学 2017-01-24 Jim Pitman , Yuri Yakubovich

Complex eigenvalues of random matrices $J=\text{GUE }+ i\gamma \diag (1, 0, \ldots, 0)$ provide the simplest model for studying resonances in wave scattering from a quantum chaotic system via a single open channel. It is known that in the…

数学物理 · 物理学 2023-01-12 Yan V. Fyodorov , Boris A. Khoruzhenko , Mihail Poplavskyi
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