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相关论文: Random matrix theory and $QCD_3$

200 篇论文

In this chapter of the Oxford Handbook of Random Matrix Theory we introduce chiral Random Matrix Theories with the global symmetries of QCD. In the microscopic domain, these theories reproduce the mass and chemical potential dependence of…

高能物理 - 理论 · 物理学 2009-10-22 J. J. M. Verbaarschot

In traditional QCD sum rules, the simple hadron spectral density model of ``delta-function-type ground state + theta-function-type continuous spectrum" determines that there is no perfect parameter selection. In recent years, inverse…

高能物理 - 唯象学 · 物理学 2024-07-16 Zhen-Xing Zhao , Yi-Peng Xing , Run-Hui Li

We review the application of random matrix theory (RMT) to chiral symmetry in QCD. Starting from the general philosophy of RMT we introduce a chiral random matrix model with the global symmetries of QCD. Exact results are obtained for…

高能物理 - 格点 · 物理学 2016-09-01 J. J. M. Verbaarschot

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

Quark spectra in QCD are linked to fundamental properties of the theory including the identification of pions as the Goldstone bosons of spontaneously broken chiral symmetry. The lattice Overlap-Dirac operator provides a nonperturbative,…

高能物理 - 理论 · 物理学 2009-10-31 Robert G. Edwards , Urs M. Heller , Joe Kiskis , Rajamani Narayanan

We derive the microscopic spectral density of the Dirac operator in $SU(N_c\geq 3)$ Yang-Mills theory coupled to $N_f$ fermions in the fundamental representation. An essential technical ingredient is an exact rewriting of this density in…

高能物理 - 理论 · 物理学 2009-10-31 P. H. Damgaard , J. C. Osborn , D. Toublan , J. J. M. Verbaarschot

We introduce Random Matrix Models for the Hermitian Wilson-Dirac operator of QCD-like theories. We show that they are equivalent to the $\epsilon$-limit of the chiral Lagrangian for Wilson chiral perturbation theory. Results are obtained…

高能物理 - 格点 · 物理学 2013-03-14 Mario Kieburg , Jacobus J. M. Verbaarschot , Savvas Zafeiropoulos

We summarize the analytical solution of the Chiral Perturbation Theory for the Hermitian Wilson Dirac operator of $N_c=2$ QCD with quarks in the fundamental representation. Results have been obtained for the quenched microscopic spectral…

高能物理 - 格点 · 物理学 2015-05-20 Mario Kieburg , Jacobus Verbaarschot , Savvas Zafeiropoulos

In non-Hermitian random matrix theory there are three universality classes for local spectral correlations: the Ginibre class and the nonstandard classes $\mathrm{AI}^\dagger$ and $\mathrm{AII}^\dagger$. We show that the continuum Dirac…

高能物理 - 理论 · 物理学 2021-08-04 Takuya Kanazawa , Tilo Wettig

In this paper we study a random matrix model with the chiral and flavor structure of the QCD Dirac operator and a temperature dependence given by the lowest Matsubara frequency. Using the supersymmetric method for random matrix theory, we…

高能物理 - 唯象学 · 物理学 2009-10-28 A. D. Jackson , M. K. Şener , J. J. M. Verbaarschot

In this paper we complete the derivations of finite volume partition functions for QCD using random matrix theories by calculating the effective low-energy partition function for three-dimensional QCD in the adjoint representation from a…

高能物理 - 理论 · 物理学 2009-10-31 U. Magnea

We propose a technique for calculating and understanding the eigenvalue distribution of sums of random matrices from the known distribution of the summands. The exact problem is formidably hard. One extreme approximation to the true density…

量子物理 · 物理学 2017-10-27 Ramis Movassagh , Alan Edelman

In these two lectures given at the 1997 Zakopane workshop on "New Developments in Quantum Field Theory" we review recent results on universal fluctuations in QCD Dirac spectra. We start the first lecture with a review of some general…

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

We develop a supersymmetric field theoretical description of the Gaussian ensemble of the almost diagonal Hermitian Random Matrices. The matrices have independent random entries H_{ij} with parametrically small off-diagonal elements…

无序系统与神经网络 · 物理学 2016-09-07 Oleg Yevtushenko , Alexander Ossipov

Recent work on the spectrum of the Euclidean Dirac operator spectrum show that the exact microscopic spectral density can be computed in both random matrix theory, and directly from field theory. Exact relations to effective Lagrangians…

高能物理 - 理论 · 物理学 2007-05-23 P. H. Damgaard

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

Approximating the sum over all gauge field configurations in the QCD partition function by a liquid of instantons, we calculate the spectrum of the Dirac operator for two and three colors and for 0, 1 and 2 flavors. We find a remarkable…

高能物理 - 格点 · 物理学 2009-10-22 Jacobus Verbaaarschot

In this lecture we discuss various aspects of QCD at nonzero chemical potential, including its phase diagram and the Dirac spectrum, and summarize what chiral random matrix theory has contributed to this subject. To illustrate the…

高能物理 - 唯象学 · 物理学 2017-08-23 K. Splittorff , J. J. M. Verbaarschot

We analyze Dirac spectra of two-dimensional QCD like theories both in the continuum and on the lattice and classify them according to random matrix theories sharing the same global symmetries. The classification is different from QCD in…

高能物理 - 格点 · 物理学 2014-10-22 Mario Kieburg , Jacobus J. M. Verbaarschot , Savvas Zafeiropoulos

Recently, a non-Hermitian chiral random matrix model was proposed to describe the eigenvalues of the QCD Dirac operator at nonzero chemical potential. This matrix model can be constructed from QCD by mapping it to an equivalent matrix model…

高能物理 - 格点 · 物理学 2009-11-10 G. Akemann , T. Wettig