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We apply the probability distribution function method to the study of chiral properties of QCD with quarks in the exact massless limit. A relation among the chiral condensate, zeros of the Bessel function and eigenvalue of Dirac operator is…

高能物理 - 格点 · 物理学 2009-10-02 Xiang-Qian Luo

The zero momentum sectors in effective theories of three dimensional QCD coupled to pseudoreal (two colors) and real (adjoint) quarks in a classically parity-invariant manner have alternative descriptions in terms of orthogonal and…

高能物理 - 理论 · 物理学 2016-09-06 T. Nagao , S. M. Nishigaki

We discuss the eigenvalue distribution of the overlap Dirac operator in quenched QCD on lattices of size 8^{4}, 10^{4} and 12^{4} at \beta = 5.85 and \beta = 6. We distinguish the topological sectors and study the distributions of the…

高能物理 - 格点 · 物理学 2009-11-10 W. Bietenholz , K. Jansen , S. Shcheredin

We identify a non-Hermitian chiral random matrix theory that corresponds to two-color QCD at high density. We show that the partition function of the random matrix theory coincides with the partition function of the finite-volume effective…

高能物理 - 唯象学 · 物理学 2010-04-29 Takuya Kanazawa , Tilo Wettig , Naoki Yamamoto

Random Matrix Theory has been a unifying approach in physics and mathematics.In these lectures we discuss applications of Random Matrix Theory to QCD and emphasize underlying integrable structures. In the first lecture we give an overview…

高能物理 - 理论 · 物理学 2007-05-23 J. J. M. Verbaarschot

Exact results from random matrix theory are used to systematically analyse the relationship between microscopic Dirac spectra and finite-volume partition functions. Results are presented for the unitary ensemble, and the chiral analogs of…

高能物理 - 理论 · 物理学 2009-10-31 G. Akemann , P. H. Damgaard

Given a collection $\{\lambda_1, \dots, \lambda_n\} $ of real numbers, there is a canonical probability distribution on the set of real symmetric or complex Hermitian matrices with eigenvalues $\lambda_1,\ldots,\lambda_n$. In this paper, we…

概率论 · 数学 2023-11-30 Elizabeth S. Meckes , Mark W. Meckes

We apply a complex chiral random matrix model as an effective model to QCD with a small chemical potential at zero temperature. In our model the correlation functions of complex eigenvalues can be determined analytically in two different…

高能物理 - 格点 · 物理学 2017-08-23 G. Akemann , T. Wettig

In the last few years, the supersymmetry method was generalized to real-symmetric, Hermitean, and Hermitean self-dual random matrices drawn from ensembles invariant under the orthogonal, unitary, and unitary symplectic group, respectively.…

数学物理 · 物理学 2014-10-14 Vural Kaymak , Mario Kieburg , Thomas Guhr

According to the Banks-Casher formula the chiral order parameter is directly related to the spectrum of the Dirac operator. In this lecture, we will argue that some properties of the Dirac spectrum are universal and can be obtained from a…

高能物理 - 唯象学 · 物理学 2007-05-23 J. J. M. Verbaarschot

The degree of entanglement of random pure states in bipartite quantum systems can be estimated from the distribution of the extreme Schmidt eigenvalues. For a bipartition of size M\geq N, these are distributed according to a…

数学物理 · 物理学 2011-06-07 Gernot Akemann , Pierpaolo Vivo

We study the spectrum of the hermitian Wilson Dirac operator in the epsilon-regime of QCD in the quenched approximation and compare it to predictions from Wilson Random Matrix Theory. Using the distributions of single eigenvalues in the…

高能物理 - 格点 · 物理学 2011-12-22 Albert Deuzeman , Urs Wenger , Jaïr Wuilloud

We derive the distributions of individual eigenvalues for the Hermitian Wilson Dirac Operator D5 as well as for real eigenvalues of the Wilson Dirac Operator DW. The framework we provide is valid in the epsilon regime of chiral perturbation…

高能物理 - 格点 · 物理学 2012-05-07 G. Akemann , A. C. Ipsen

We discuss a new Random Matrix Model for QCD with a chemical potential that is based on the symmetries of the Dirac operator and can be solved exactly for all eigenvalue correlations for any number of flavors. In the microscopic limit of…

高能物理 - 格点 · 物理学 2009-11-10 James C. Osborn

We analyze complete spectra of the lattice Dirac operator in SU(2) gauge theory and demonstrate that the distribution of low-lying eigenvalues is described by random matrix theory. We present possible practical applications of this…

高能物理 - 格点 · 物理学 2009-10-30 M. E. Berbenni-Bitsch , A. D. Jackson , S. Meyer , A. Schäfer , J. J. M. Verbaarschot , T. Wettig

A model for the QCD vacuum based on a domainlike structured background gluon field with definite duality attributed to the domains has been shown elsewhere to give confinement of static quarks, a reasonable value for the topological…

高能物理 - 唯象学 · 物理学 2009-11-07 Alex C. Kalloniatis , Sergei N. Nedelko

We consider the smallest eigenvalue distributions of some Freud unitary ensembles, that is, the probabilities that all the eigenvalues of the Hermitian matrices from the ensembles lie in the interval $(t,\infty)$. This problem is related to…

数学物理 · 物理学 2024-02-26 Chao Min , Liwei Wang

As was shown by Leutwyler and Smilga, the fact that chiral symmetry is broken and the existence of a effective finite volume partition function leads to an infinite number of sum rules for the eigenvalues of the Dirac operator in QCD. In…

高能物理 - 理论 · 物理学 2009-09-25 Jacobus Verbaarschot

In Quantum Chromodynamics (QCD) the eigenmodes of the Dirac operator with small absolute eigenvalues have a close relationship to the dynamical breaking of the chiral symmetry. In a simulation with two dynamical quarks, we study the…

高能物理 - 格点 · 物理学 2015-03-19 C. B. Lang , Mario Schröck

In the presence of a non-vanishing chemical potential the eigenvalues of the Dirac operator become complex. We use a random matrix model approach to calculate analytically all correlation functions at weak and strong non-Hermiticity for…

高能物理 - 格点 · 物理学 2007-05-23 G. Akemann