QCD at Non-Zero Density : Lattice Results

Abstract

A concise review of the progress of lattice calculations at non-zero density since QM2006 is given, with emphasis on the high baryon density, low temperature domain. Possibilities for exploring densities higher than those studied by standard techniques are analysed. The phase transitions of cold, dense matter, where the sign problem remains severe, are discussed in the context of QCD-like models and approximations to QCD.

8 pages, 8 figures. Plenary talk at Quark Matter 2008: 20th International Conference on Ultra-Relativistic Nucleus Nucleus Collisions (QM2008), Jaipur, India, 4-10 Feb 2008. Pdflatex problem fixed

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• Spontaneous P-violation in QCD in extreme conditions
• The axial anomaly and the phases of dense QCD
• A link between measured neutron star masses and lattice QCD data
• Parity-time symmetry breaking in spin chains
• PT Symmetry in Classical and Quantum Statistical Mechanics
• Geometric Algorithm for Abelian-Gauge Models
• Two flavor massless Schwinger model on a torus at a finite chemical potential
• QCD thermodynamics at zero and non-zero density
• Baryon number, strangeness and electric charge fluctuations at zero and non-zero chemical potential
• The Fluctuations of the Quark Number and of the Chiral Condensate