Abstract
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 GeV/fm 3 just after the crossover ( m π / m ρ ≈ 0.4 at this point). Comparing with our previous result for N t = 4 [1], 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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