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相关论文: A matrix model of a non-Hermitian $\beta$-ensemble

200 篇论文

We compute analytically the joint probability density of eigenvalues and the level spacing statistics for an ensemble of random matrices with interesting features. It is invariant under the standard symmetry groups (orthogonal and unitary)…

统计力学 · 物理学 2015-07-21 Zdzisław Burda , Giacomo Livan , Pierpaolo Vivo

We compute the second order asymptotics of the maximum of the absolute value of the log-characteristic polynomial of random Jacobi matrices whose coefficients satisfy some exponential integrability condition. In particular, by the…

概率论 · 数学 2025-12-16 Fanny Augeri , Ofer Zeitouni

We relate Nekrasov partition functions, with arbitrary values of $\epsilon_1,\epsilon_2$ parameters, to matrix models for $\beta$-ensembles. We find matrix models encoding the instanton part of Nekrasov partition functions, whose measure,…

高能物理 - 理论 · 物理学 2010-04-30 Piotr Sułkowski

Recent work of Bornemann has uncovered hitherto hidden integrable structures relating to the asymptotic expansion of quantities at the soft edge of Gaussian and Laguerre random matrix ensembles. These quantities are spacing distributions…

数学物理 · 物理学 2026-04-10 Peter J. Forrester , Anas A. Rahman , Bo-Jian Shen

In the hard edge scaling limit of the Jacobi unitary ensemble generated by the weight $x^{\alpha}(1-x)^{\beta},~x\in[0,1],~\alpha,\beta>0$, the probability that all eigenvalues of Hermitian matrices from this ensemble lie in the interval…

数学物理 · 物理学 2021-07-28 Shulin Lyu , Yang Chen

Following our recent letter, we study in detail an entry-wise diffusion of non-hermitian complex matrices. We obtain an exact partial differential equation (valid for any matrix size $N$ and arbitrary initial conditions) for evolution of…

数学物理 · 物理学 2015-10-20 Zdzislaw Burda , Jacek Grela , Maciej A. Nowak , Wojciech Tarnowski , Piotr Warchoł

We consider $N\times N$ Hermitian or symmetric random matrices with independent entries. The distribution of the $(i,j)$-th matrix element is given by a probability measure $\nu_{ij}$ whose first two moments coincide with those of the…

数学物理 · 物理学 2011-11-16 Antti Knowles , Jun Yin

The Ginibre ensemble of nonhermitean random Hamiltonian matrices $K$ is considered. Each quantum system described by $K$ is a dissipative system and the eigenenergies $Z_{i}$ of the Hamiltonian are complex-valued random variables. The…

统计力学 · 物理学 2007-05-23 Maciej M. Duras

We investigate the statistical properties of eigenvalues of pseudo-Hermitian random matrices whose eigenvalues are real or complex conjugate. It is shown that when the spectrum splits into separated sets of real and complex conjugate…

统计力学 · 物理学 2020-08-28 Gabriel Marinello , Mauricio Porto Pato

The focus of this paper is on the probability, $E_\beta(0;J)$, that a set $J$ consisting of a finite union of intervals contains no eigenvalues for the finite $N$ Gaussian Orthogonal ($\beta=1$) and Gaussian Symplectic ($\beta=4$) Ensembles…

solv-int · 物理学 2014-11-18 Craig A. Tracy , Harold Widom

We reformulate the zero-dimensional hermitean one-matrix model as a (nonlocal) collective field theory, for finite~$N$. The Jacobian arising by changing variables from matrix eigenvalues to their density distribution is treated {\it…

高能物理 - 理论 · 物理学 2010-11-01 Olaf Lechtenfeld

Recently discovered exact integrability of zero-dimensional replica field theories [E. Kanzieper, Phys. Rev. Lett. 89, 250201 (2002)] is examined in the context of Ginibre Unitary Ensemble of non-Hermitean random matrices (GinUE). In…

无序系统与神经网络 · 物理学 2007-05-23 Eugene Kanzieper

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

We review elementary properties of random matrices and discuss widely used mathematical methods for both hermitian and nonhermitian random matrix ensembles. Applications to a wide range of physics problems are summarized. This paper…

高能物理 - 唯象学 · 物理学 2007-05-23 M. A. Stephanov , J. J. M. Verbaarschot , T. Wettig

We apply the recently introduced method of hermitization to study in the large $N$ limit non-hermitean random matrices that are drawn from a large class of circularly symmetric non-Gaussian probability distributions, thus extending the…

无序系统与神经网络 · 物理学 2009-10-30 J. Feinberg , A. Zee

The paper is concerned with the asymptotic behavior of the correlation functions of the characteristic polynomials of non-Hermitian random matrices with independent entries. It is shown that the correlation functions behave like that for…

数学物理 · 物理学 2022-01-04 Ievgenii Afanasiev

A non-Hermitean random matrix model proposed a few years ago has a remarkably intricate spectrum. Various attempts have been made to understand the spectrum, but even its dimension is not known. Using the Dyson-Schmidt equation, we show…

数学物理 · 物理学 2007-05-23 Daniel E. Holz , Henri Orland , A. Zee

We investigate the eigenvalues statistics of ensembles of normal random matrices when their order N tends to infinite. In the model the eigenvalues have uniform density within a region determined by a simple analytic polynomial curve. We…

概率论 · 数学 2009-09-08 Alexei M. Veneziani , Tiago Pereira , Domingos H. U. Marchetti

Using large $N$ arguments, we propose a scheme for calculating the two-point eigenvector correlation function for non-normal random matrices in the large $N$ limit. The setting generalizes the quaternionic extension of free probability to…

数学物理 · 物理学 2018-07-03 Maciej A. Nowak , Wojciech Tarnowski

We employ the fermionic and bosonic replicated nonlinear sigma models to treat Ginibre unitary, symplectic, and orthogonal ensembles of non-Hermitian random matrix Hamiltonians. Using saddle point approach combined with Borel resummation…

无序系统与神经网络 · 物理学 2009-11-07 Shinsuke M. Nishigaki , Alex Kamenev