The $N_t=6$ equation of state for two flavor QCD

Details The $N_t=6$ equation of state for two flavor QCD The $N_t=6$ equation of state for two flavor QCD

1995-09-29

arxiv.org/abs/hep-lat/9509093v1

Nucl.Phys.Proc.Suppl.47:503-510,1996

Physics

High Energy Physics

High Energy Physics - Lattice

Contribution to Lattice 95 proceedings (combines talks presented by T. Blum and L. Karkkainen). LaTeX, 8 pages, uses espcrc2.s

Scientific paper

10.1016/0920-5632(96)00110-7

We improve the calculation of the equation of state for two flavor QCD by simulating on $N_t=6$ lattices at appropriate values of the couplings for the deconfinement/chiral symmetry restoration crossover. For $am_q=0.0125$ the energy density rises rapidly to approximately 1 ${\rm GeV/fm^3}$ just after the crossover($m_\pi/m_\rho\approx 0.4$ at this point). Comparing with our previous result for $N_t=4$~\cite{eos}, we find large finite $N_t$ corrections as expected from free field theory on finite lattices. We also provide formulae for extracting the speed of sound from the measured quantities.

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