Lattice QCD with chemical potential

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Reweighting and other direct approaches • Two parameter reweighting and results. Z. Fodor and S. D. Katz, J. H. E. P., 03 (2002) 014. • Express the reweighting in terms of derivatives of Z with respect to µ. C. R. Allton et al., Phys. Rev., D 66 (2002) 074507 • Simulate imaginary µ (positive det M) and do analytic continuation. M. D’Elia and M.-P. Lombardo, hep-lat/0209146 P. De Forcrand and O. Philipsen, Nucl. Phys., B642 (2002) 290 • Special care needed for this: find Yang-Lee zeroes directly. S, Gupta, hep-lat/0307007. • Canonical partition functions and propagator matrix. P. Crompton, P. Higgs, MILC, BI, etc Chemical potential/S. Gupta: IMSc, 2003 to plan, Phases, Reweight, Expansion, QNS, strangeness, EOS, masses, end 5
Chemical potential/S. Gupta: IMSc, 2003 to plan, Phases, Reweight, Expansion, QNS, strangeness, EOS, masses, end 6
Page 1: Lattice QCD with chemical potential
Page 4 and 5: What’s the problem? Z = e −F/T
Page 8 and 9: Reweighting: lattice artifacts Chem
Page 10 and 11: Derivatives Derivatives of log Z ca
Page 12 and 13: Some notation With two degenerate f
Page 14 and 15: Perturbation theory 1.0 1 0.9 NL HT
Page 16 and 17: Event to event fluctuations Each he
Page 18 and 19: The pressure P (T, µ) = −F/V = P
Page 20 and 21: Radius of convergence: distance to
Page 22: Summary of Results More than one me

Lattice QCD with chemical potential

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