Static correlation lengths in QCD at high temperature and finite density

  title={Static correlation lengths in QCD at high temperature and finite density},
  author={Owe Philipsen},

Figures from this paper


▪ Abstract We review lattice QCD investigations at high temperature. After a short introduction to thermal QCD on the lattice, we report on the present understanding of the phase diagram and the

Equation of State for QCD at finite temperature and density. Resummation versus lattice data

The perturbative series for finite-temperature field theories has very poor convergence properties and one needs a way to reorganize it. In this talk, I review two ways of reorganizing the

Mesonic screening masses at high temperature and finite density

We compute the first perturbative correction to the static correlation lengths of light quark bilinears in hot QCD with finite quark chemical potentials. The correction is small and positive, with

Pressure of QCD at finite temperatures and chemical potentials

We compute the perturbative expansion of the pressure of hot QCD to order g(6)ln g in the presence of finite quark chemical potentials. In this process we evaluate all two- and three-loop vacuum

High order quark number susceptibilities in hot QCD from lattice EQCD

Building on the experience of [1], we develop a formalism to construct operators for higher derivatives of the pressure in hot QCD with respect to the quark chemical potential μ. We provide formulae

Mesonic correlation lengths in high-temperature QCD

We consider spatial correlation lengths xi for various QCD light quark bilinears, at temperatures above a few hundred MeV. Some of the correlation lengths (such as that related to baryon density)



High density QCD with static quarks.

In this approximation, the deconfinement transition seen at zero density becomes a smooth crossover at very small density (possibly for any nonzero density), and that at low enough temperature chiral symmetry remains broken at all densities.

The Role of the Polyakov loop in finite density QCD

We study the behavior of the fermion determinant at finite temperature and chemical potential, as a function of the Polyakov loop. The phase of the determinant is correlated with the imaginary part

QCD and instantons at finite temperature

The current understanding of the behavior of quantum chromodynamics at finite temperature is presented. Perturbative methods are used to explore the high-temperature dynamics. At sufficiently high