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相关论文: Random matrix theory and $QCD_3$

200 篇论文

We study various improved staggered quark Dirac operators on quenched gluon backgrounds in lattice QCD. We find a clear separation of the spectrum of eigenvalues into high chirality, would-be zero modes and others, in accordance with the…

高能物理 - 格点 · 物理学 2015-06-25 E. Follana , A. Hart , C. T. H. Davies

A non-Hermitean extension of paradigmatic Wishart random matrices is introduced to set up a theoretical framework for statistical analysis of (real, complex and real quaternion) stochastic time series representing two "remote" complex…

数学物理 · 物理学 2011-02-07 Eugene Kanzieper , Navinder Singh

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

The Random Matrix Model approach to Quantum Chromodynamics (QCD) with non-vanishing chemical potential is reviewed. The general concept using global symmetries is introduced, as well as its relation to field theory, the so-called epsilon…

高能物理 - 理论 · 物理学 2008-11-26 G. Akemann

The zero momentum sectors in effective theories of QCD coupled to pseudoreal (two colors) and real (adjoint) quarks have alternative descriptions in terms of chiral orthogonal and symplectic ensembles of random matrices. Using this…

高能物理 - 理论 · 物理学 2009-10-31 T. Nagao , S. M. Nishigaki

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

In this note we calculate the spectrum of two-dimensional QCD. We formulate the theory with SU(N_c) currents rather than with fermionic operators. We construct the Hamiltonian matrix in DLCQ formulation as a function of the harmonic…

高能物理 - 理论 · 物理学 2008-11-26 U. Trittmann

Hadronic spectral densities play a pivotal role in particle physics, a prime example being the R-ratio defined from electron-positron scattering into hadrons. To predict them from first principles using Lattice QCD, we face a numerically…

高能物理 - 格点 · 物理学 2024-01-15 Mattia Bruno , Leonardo Giusti , Matteo Saccardi

We analyze the smallest Dirac eigenvalues by formulating an effective theory for the QCD Dirac spectrum. We find that in a domain where the kinetic term of the effective theory can be ignored, the Dirac eigenvalues are distributed according…

高能物理 - 理论 · 物理学 2011-04-15 D. Toublan , J. J. M. Verbaarschot

It was established that distribution of the near-zero modes of the Dirac operator is consistent with the Chiral Random Matrix Theory (CRMT) and can be considered as a consequence of spontaneous breaking of chiral symmetry (SBCS) in QCD. The…

高能物理 - 格点 · 物理学 2018-04-18 M. Catillo , L. Ya. Glozman

We study a single 2d Dirac fermion at finite density, subject to a quenched random magnetic field. At low energies and sufficiently weak disorder, the theory maps onto an infinite collection of 1d chiral fermions (associated to each point…

强关联电子 · 物理学 2023-06-07 Chao-Jung Lee , Michael Mulligan

We study random normal matrix models whose eigenvalues tend to be distributed within a narrow "band" around the unit circle of width proportional to $\frac1n$, where $n$ is the size of matrices. For general radially symmetric potentials…

概率论 · 数学 2021-12-22 Sung-Soo Byun , Seong-Mi Seo

Random Hermitian matrices are used to model complex systems without time-reversal invariance. Adding an external source to the model can have the effect of shifting some of the matrix eigenvalues, which corresponds to shifting some of the…

数学物理 · 物理学 2015-05-20 Marco Bertola , Robert Buckingham , Seung-Yeop Lee , Virgil U. Pierce

The supersymmetric method is a powerful method for the evaluation of quenched averages in disordered systems. Among others, this method has been applied to the theory of S-matrix fluctuations, the theory of universal conductance…

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

A chiral random matrix model with complex eigenvalues is solved as an effective model for QCD with non-vanishing chemical potential. We derive new matrix model correlation functions which predict the local fluctuations of complex Dirac…

高能物理 - 理论 · 物理学 2009-11-07 G. Akemann

We review applications of random matrix theory to QCD at nonzero temperature and chemical potential. The chiral phase transition of QCD and QCD-like theories is discussed in terms of eigenvalues of the Dirac operator. We show that for QCD…

高能物理 - 唯象学 · 物理学 2008-11-26 K. Splittorff , J. J. M. Verbaarschot

A connection between integrability properties and general statistical properties of the spectra of symmetric transfer matrices of the asymmetric eight-vertex model is studied using random matrix theory (eigenvalue spacing distribution and…

凝聚态物理 · 物理学 2009-10-28 H. Meyer , J. -C. Anglès d'Auriac , J. -M. Maillard

We investigate the eigenvalue spectrum of the staggered Dirac matrix in full QCD with two colors and finite chemical potential. Along the strong-coupling axis up to the temperature phase transition, the low-lying Dirac spectrum is well…

高能物理 - 格点 · 物理学 2007-05-23 Elmar Bittner , Maria-Paola Lombardo , Harald Markum , Rainer Pullirsch

We present progress on the problem of asymptotically describing the adjacency eigenvalues of random and complete uniform hypergraphs. There is a natural conjecture arising from analogy with random matrix theory that connects these spectra…

组合数学 · 数学 2018-01-10 Joshua Cooper

We compare analytic predictions of non-Hermitian chiral random matrix theory with the complex Dirac operator eigenvalue spectrum of two-colour lattice gauge theory with dynamical fermions at nonzero chemical potential. The Dirac eigenvalues…

高能物理 - 格点 · 物理学 2009-11-11 G. Akemann , E. Bittner