Lattice QCD at Finite Temperature and Density

Details Lattice QCD at Finite Temperature and Density Lattice QCD at Finite Temperature and Density

2005-09-29

arxiv.org/abs/hep-lat/0509180v1

Mod.Phys.Lett.A22:457-472,2007

Physics

High Energy Physics

High Energy Physics - Lattice

15 pages, 1 figure, prepared for "Non-Perturbative Quantum Field Theory: Lattice and Beyond", Guangzhou, China

Scientific paper

10.1142/S0217732307023055

A general introduction into the subject aimed at a general theoretical physics audience. We introduce the sign problem posed by finite density lattice QCD, and we discuss the main methods proposed to circumvent it, with emphasis on the imaginary chemical potential approach. The interrelation between the Taylor expansion and the analytic continuation from imaginary chemical potential is discussed in detail. The main applications to the calculation of the critical line, and to the thermodynamics of the hot and the hadronic phase are reviewed.

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