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Pseudo-hermitian matrices are matrices hermitian with respect to an indefinite metric. They can be thought of as the truncation of pseudo-hermitian operators, defined over some Krein space, together with the associated metric, to a finite…

数学物理 · 物理学 2022-02-03 Joshua Feinberg , Roman Riser

Weak-scale supersymmetry is one of the most favoured theories beyond the Standard Model of particle physics that elegantly solves various theoretical and observational problems in both particle physics and cosmology. In this thesis, I…

宇宙学与河外天体物理 · 物理学 2011-11-04 Yashar Akrami

We construct a random matrix model that, in the large $N$ limit, reduces to the low energy limit of the QCD partition function put forward by Leutwyler and Smilga. This equivalence holds for an arbitrary number of flavors and any value of…

高能物理 - 理论 · 物理学 2016-09-06 E. V. Shuryak , J. J. M. Verbaarschot

Spectral Method is a commonly used scheme to cluster data points lying close to Union of Subspaces by first constructing a Random Geometry Graph, called Subspace Clustering. This paper establishes a theory to analyze this method. Based on…

机器学习 · 计算机科学 2019-07-26 Gen Li , Yuantao Gu

For dynamical dark energy cosmologies we carry out a series of N-body gravitational simulations, achieving percent level accuracy in the relative mass power spectra at any redshift. Such accuracy in the power spectrum is necessary for next…

天体物理学 · 物理学 2009-06-23 Matthew J. Francis , Geraint F. Lewis , Eric V. Linder

This paper studies the asymptotic behavior of eigenvalues of random abelian G-circulant matrices, that is, matrices whose structure is related to a finite abelian group G in a way that naturally generalizes the relationship between…

概率论 · 数学 2012-08-17 Mark W. Meckes

We consider an ensemble of $2\times 2$ normal matrices with complex entries representing operators in the quantum mechanics of 2 - level parity-time reversal (PT) symmetric systems. The randomness of the ensemble is endowed by obtaining…

数学物理 · 物理学 2025-01-14 Stalin Abraham , A. Bhagwat , Sudhir Ranjan Jain

The spherical orthogonal, unitary, and symplectic ensembles (SOE/SUE/SSE) $S_\beta(N,r)$ consist of $N \times N$ real symmetric, complex hermitian, and quaternionic self-adjoint matrices of Frobenius norm $r$, made into a probability space…

概率论 · 数学 2015-02-03 Gene S. Kopp , Steven J. Miller

In the present context, superintegrability is a property of certain probability density functions coming from matrix models, which relates to the average over a distinguished basis of symmetric functions, typically the Jack or Macdonald…

数学物理 · 物理学 2025-05-20 Sung-Soo Byun , Peter J. Forrester

Statistical extreme value theory is concerned with the use of asymptotically motivated models to describe the extreme values of a process. A number of commonly used models are valid for observed data that exceed some high threshold.…

统计方法学 · 统计学 2014-12-10 J. Lee , Y. Fan , S. A. Sisson

The microscopic spectral eigenvalue correlations of QCD Dirac operators in the presence of dynamical fermions are calculated within the framework of Random Matrix Theory (RMT). Our approach treats the low--energy correlation functions of…

高能物理 - 格点 · 物理学 2008-11-26 G. Akemann , E. Kanzieper

We analyze the spectral properties of correlation matrices between distinct statistical systems. Such matrices are intrinsically non symmetric, and lend themselves to extend the spectral analyses usually performed on standard Pearson…

统计金融 · 定量金融 2012-06-29 Giacomo Livan , Luca Rebecchi

We describe the investigation of spontaneous mass-generation and chiral symmetry breaking in supersymmetric QED3 using numerical solutions of the Dyson-Schwinger equation together with the CJT effective action and supersymmetric Ward…

高能物理 - 理论 · 物理学 2016-08-25 M. L. Walker , C. J. Burden

Recently we introduced a family of $U(N)$ invariant Random Matrix Ensembles which is characterized by a parameter $\lambda$ describing logarithmic soft-confinement potentials $V(H) \sim [\ln H]^{(1+\lambda)} \:(\lambda>0$). We showed that…

无序系统与神经网络 · 物理学 2013-05-29 Jinmyung Choi , K. A. Muttalib

Statistical properties of ensembles of random density matrices are investigated. We compute traces and von Neumann entropies averaged over ensembles of random density matrices distributed according to the Bures measure. The eigenvalues of…

量子物理 · 物理学 2009-11-10 Hans-Juergen Sommers , Karol Zyczkowski

Random matrix models based on an integral over supermatrices are proposed as a natural extension of bosonic matrix models. The subtle nature of superspace integration allows these models to have very different properties from the analogous…

高能物理 - 理论 · 物理学 2015-06-26 Scott A. Yost

Subspace methods are commonly used for finding approximate eigenvalues and singular values of large-scale matrices. Once a subspace is found, the Rayleigh-Ritz method (for symmetric eigenvalue problems) and Petrov-Galerkin projection (for…

数值分析 · 数学 2025-10-07 Irina-Beatrice Haas , Yuji Nakatsukasa

Random matrix theory is finding an increasing number of applications in the context of information theory and communication systems, especially in studying the properties of complex networks. Such properties include short-term and long-term…

数学物理 · 物理学 2015-01-13 Sherif M. Abuelenin , Adel Y. Abul-Magd

We study ensembles of sparse random block matrices generated from the adjacency matrix of a Erd\"os-Renyi random graph with $N$ vertices of average degree $Z$, inserting a real symmetric $d \times d$ random block at each non-vanishing…

数学物理 · 物理学 2022-06-22 Giovanni M. Cicuta , Mario Pernici

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