Lattice QCD at finite density

Details Lattice QCD at finite density Lattice QCD at finite density

2004-01-13

arxiv.org/abs/hep-lat/0401021v1

Prog.Theor.Phys.Suppl.153:26-39,2004

Physics

High Energy Physics

High Energy Physics - Lattice

14 pages; to appear in the proceedings of Workshop on Finite Density QCD at Nara, Nara, Japan, 10-12 July 2003

Scientific paper

10.1143/PTPS.153.26

QCD at finite density presents specific challenges to lattice gauge theory. Nonetheless, a region of the QCD phase diagram up to moderately large baryon chemical potentials has been successfully explored on the lattice and new results and idea are continuously emerging. I will outline the lattice formulation of QCD, introduce the calculational schemes currently used to treat a nonzero baryon density, and mention lattice methods alternative to MonteCarlo, including the strong coupling expansion which might give access to the the superconducting phase of QCD. The results for the critical line, and the different phases will be discussed highlighting the strength of the different methods, as well as the possible comparisons with phenomenological models.

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