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相关论文: Exact replica treatment of non-Hermitean complex r…

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Exact solvability is claimed for nonlinear replica sigma models derived in the context of random matrix theories. Contrary to other approaches reported in the literature, the framework outlined does not rely on traditional "replica symmetry…

无序系统与神经网络 · 物理学 2009-11-07 Eugene Kanzieper

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

In a recent breakthrough Kanzieper showed that it is possible to obtain exact nonperturbative Random Matrix results from the replica limit of the corresponding Painlev\'e equation. In this article we analyze the replica limit of the Toda…

无序系统与神经网络 · 物理学 2009-11-07 K. Splittorff , J. J. M. Verbaarschot

This Chapter outlines the replica approach in Random Matrix Theory. Both fermionic and bosonic versions of the replica limit are introduced and its trickery is discussed. A brief overview of early heuristic treatments of zero-dimensional…

无序系统与神经网络 · 物理学 2009-11-19 Eugene Kanzieper

Building on insights from the theory of integrable lattices, the integrability is claimed for nonlinear replica sigma models derived in the context of real symmetric random matrices. Specifically, the fermionic and the bosonic replica…

数学物理 · 物理学 2013-09-09 Pedro Vidal , Eugene Kanzieper

We consider a generic time-reversal invariant model of fermions hopping randomly on a square lattice. By means of the conventional replica-trick within the fermionic path-integral formalism, the model is mapped onto a non-linear sigma-model…

无序系统与神经网络 · 物理学 2009-11-11 Luca Dell'Anna

Exact microscopic spectral correlation functions are derived by means of the replica limit of the Toda lattice equation. We consider both Hermitian and non-Hermitian theories in the Wigner-Dyson universality class (class A) and in the…

高能物理 - 理论 · 物理学 2009-11-10 K. Splittorff , J. J. M. Verbaarschot

Recent developments [Kamenev and Mezard, cond-mat/9901110, cond-mat/9903001; Yurkevich and Lerner, cond-mat/9903025; Zirnbauer, cond-mat/9903338] have revived a discussion about applicability of the replica approach to description of…

统计力学 · 物理学 2009-10-31 E. Kanzieper

We construct a replica field theory for a random matrix model with logarithmic confinement [K.A.Muttalib et.al., Phys. Rev. Lett. 71, 471 (1993)]. The corresponding replica partition function is calculated exactly for any size of matrix…

无序系统与神经网络 · 物理学 2007-05-23 T. A. Sedrakyan

This is a concise review of the complex, real and quaternion real Ginibre random matrix ensembles and their elliptic deformations. Eigenvalue correlations are exactly reduced to two-point kernels and discussed in the strongly and weakly…

数学物理 · 物理学 2009-12-01 B. A. Khoruzhenko , H. -J. Sommers

Recently, S\'a, Ribeiro and Prosen introduced complex spacing ratios to analyze eigenvalue correlations in non-Hermitian systems. At present there are no analytical results for the probability distribution of these ratios in the limit of…

统计力学 · 物理学 2022-05-20 Ioachim G. Dusa , Tilo Wettig

Non-Hermitian random matrices have been utilized in such diverse fields as dissipative and stochastic processes, mesoscopic physics, nuclear physics, and neural networks. However, the only known universal level-spacing statistics is that of…

统计力学 · 物理学 2020-06-08 Ryusuke Hamazaki , Kohei Kawabata , Naoto Kura , Masahito Ueda

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

This paper is concerned with the asymptotic behavior of the free energy for a class of Hermitean random matrix models, with odd degree polynomial potential, in the large N limit. It continues an investigation initiated and developed in a…

数学物理 · 物理学 2011-08-01 Nicholas M. Ercolani , Virgil U. Pierce

The elliptic Ginibre ensemble of complex non-Hermitian random matrices allows to interpolate between the rotational invariant Ginibre ensemble and the Gaussian unitary ensemble of Hermitian random matrices. It corresponds to a…

数学物理 · 物理学 2023-02-09 G. Akemann , M. Duits , L. D. Molag

Symplectic ensemble of disordered non-Hermitian Hamiltonians is studied. Starting from a model with an imaginary magnetic field, we derive a proper supermatrix $\sigma $-model. The zero-dimensional version of this model corresponds to a…

无序系统与神经网络 · 物理学 2009-10-31 A. V. Kolesnikov , K. B. Efetov

We introduce the first random matrix model of a complex $\beta$-ensemble. The matrices are tridiagonal and can be thought of as the non-Hermitian analogue of the Hermite $\beta$-ensembles discovered by Dumitriu and Edelman (J. Math. Phys.,…

数学物理 · 物理学 2025-04-21 Francesco Mezzadri , Henry Taylor

Using the standard concepts of free random variables, we show that for a large class of nonhermitean random matrix models, the support of the eigenvalue distribution follows from their hermitean analogs using a conformal transformation. We…

高能物理 - 唯象学 · 物理学 2009-10-28 Romuald A. Janik , Maciej A. Nowak , Gabor Papp , Jochen Wambach , Ismail Zahed

We consider large non-Hermitian real or complex random matrices $X$ with independent, identically distributed centred entries. We prove that their local eigenvalue statistics near the spectral edge, the unit circle, coincide with those of…

概率论 · 数学 2023-01-11 Giorgio Cipolloni , László Erdős , Dominik Schröder

Random matrix ensembles with orthogonal and unitary symmetry correspond to the cases of real symmetric and Hermitian random matrices respectively. We show that the probability density function for the corresponding spacings between…

数学物理 · 物理学 2007-05-23 P. J. Forrester , N. S. Witte
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