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相关论文: Random Matrix Theory at Nonzero $\mu$ and $T$

200 篇论文

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 solve a random two-matrix model with two real asymmetric matrices whose primary purpose is to describe certain aspects of quantum chromodynamics with two colours and dynamical fermions at nonzero quark chemical potential mu. In this…

高能物理 - 格点 · 物理学 2015-03-17 G. Akemann , T. Kanazawa , M. J. Phillips , T. Wettig

QCD in the $\epsilon$-regime at nonzero baryon chemical potential $\mu$ is reviewed. The focus is on aspects of the sign problem which are relevant for lattice QCD. It is discussed how spontaneous chiral symmetry breaking and the sign…

高能物理 - 格点 · 物理学 2008-11-26 K. Splittorff

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

Using a chiral random matrix theory we can now derive the low energy partition functions and Dirac eigenvalue correlations of QCD with different chemical potentials for the dynamical and valence quarks. The results can also be extended to…

高能物理 - 格点 · 物理学 2008-11-26 James C. Osborn

In the $\varepsilon$-regime of chiral perturbation theory the spectral correlations of the Euclidean QCD Dirac operator close to the origin can be computed using random matrix theory. To incorporate the effect of temperature, a random…

数学物理 · 物理学 2022-01-05 Gernot Akemann , Tim R. Würfel

We analyze the phase diagram of QCD with two massless quark flavors in the space of temperature, T, and chemical potential of the baryon charge, mu, using available experimental knowledge of QCD, insights gained from various models, as well…

高能物理 - 唯象学 · 物理学 2008-11-26 M. A. Halasz , A. D. Jackson , R. E. Shrock , M. A. Stephanov , J. J. M. Verbaarschot

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

We investigate the severity of the sign problem in a random matrix model for QCD at finite temperature T and baryon chemical potential mu. We obtain analytic expression for the average phase factor -- the measure of the severity of the sign…

高能物理 - 格点 · 物理学 2009-01-09 J. Han , M. A. Stephanov

The chiral phase transition of QCD is analyzed in a model combining random matrix elements of the Dirac operator with specially chosen non-random ones. The special form of the latter is motivated by the assumption that the fermionic…

高能物理 - 唯象学 · 物理学 2008-11-26 Tilo Wettig , A. Schäfer , H. A. Weidenmüller

We prove that QCD in the epsilon-regime of chiral Perturbation Theory is equivalent to chiral Random Matrix Theory for zero and both non-zero real and imaginary chemical potential mu. To this aim we prove a theorem that relates integrals…

高能物理 - 理论 · 物理学 2008-11-26 Francesco Basile , Gernot Akemann

In this lecture we review recent lattice QCD studies of the statistical properties of the eigenvalues of the QCD Dirac operator. We find that the fluctuations of the smallest Dirac eigenvalues are described by chiral Random Matrix Theories…

高能物理 - 格点 · 物理学 2009-10-31 J. J. M. Verbaarschot

We introduce three universality classes of chiral random matrix ensembles with a nonzero chemical potential and real, complex or quaternion real matrix elements. In the thermodynamic limit we find that the distribution of the eigenvalues in…

高能物理 - 格点 · 物理学 2008-11-26 M. A. Halasz , J. C. Osborn , J. J. M. Verbaarschot

We use a random matrix model to study chiral symmetry breaking in QCD at finite chemical potential $\mu$. We solve the model and compute the eigenvalue density of the Dirac matrix on a complex plane. A naive ``replica trick'' fails for…

高能物理 - 格点 · 物理学 2009-10-28 M. A. Stephanov

We establish a relationship between the zeros of the partition function in the complex mass plane and the spectral properties of the Dirac operator in QCD. This relation is derived within the context of chiral Random Matrix Theory and…

高能物理 - 理论 · 物理学 2009-11-07 A. D. Jackson , C. B. Lang , M. Oswald , K. Splittorff

At low temperature the low-lying QCD Dirac spectrum obeys random matrix statistics. Recently we found that above $T_{c}$ the lowest part of the spectrum consists of localized modes that obey Poisson statistics. An interesting implication of…

高能物理 - 格点 · 物理学 2014-11-03 Matteo Giordano , Sandor D. Katz , Tamas G. Kovacs , Ferenc Pittler

We consider a lattice-inspired random matrix model for the QCD chiral phase transition at finite chemical potential. Useful features of the usual RMM for QCD at finite chemical potential are reobtained, some being brought closer to their…

高能物理 - 格点 · 物理学 2007-05-23 M. A. Halasz

Chiral random matrix theory makes very detailed predictions for the spectral correlations of the QCD Dirac operator, both in the bulk of the spectrum and near zero virtuality. These predictions have been successfully tested in lattice QCD…

高能物理 - 格点 · 物理学 2007-05-23 Tilo Wettig

Phase diagram of the chiral random matrix model with U(1)A breaking term is studied with the quark chemical potentials varied independently at zero temperature, by taking the chiral and meson condensates as the order parameters. Although,…

高能物理 - 唯象学 · 物理学 2011-02-02 H. Fujii , T. Sano

We study the chemical potential effects on the chiral phase transition in a simply improved soft-wall AdS/QCD model, which can realize consistently the properties of linear confinement and spontaneous chiral symmetry breaking. The $\mu-T$…

高能物理 - 唯象学 · 物理学 2019-03-06 Zhen Fang , Yue-Liang Wu , Lin Zhang