Lattice QCD at finite temperature and density

Details Lattice QCD at finite temperature and density Lattice QCD at finite temperature and density

2010-09-07

arxiv.org/abs/1009.1186v1

Prog.Theor.Phys.Suppl.186:510-515,2010

Physics

High Energy Physics

High Energy Physics - Lattice

6 pages, 4 figures, talk presented at the YITP workshop on "New Frontiers in QCD 2010", March 1-19, 2010, Kyoto, Japan

Scientific paper

10.1143/PTPS.186.510

We study the phase structure of QCD at finite temperature and density by numerical simulations on a lattice. The most important point for the numerical study at finite density is treatment of the sign problem. We propose a method to avoid the sign problem, which is based on a cumulant expansion of the complex phase in the density of state method combined with the reweighting method. Using the method, we study the critical point terminating a first order phase transition line in lattice QCD at high temperature and density.

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