2+1 flavor QCD simulated in the ϵ-regime in different topological sectors
2009
We generated configurations with the parametrized fixed-point Dirac operator DFP on a (1.6?fm)4 box at a lattice spacing a = 0.13?fm. We compare the distributions of the three lowest k = 1,2,3 eigenvalues in the ? = 0,1,2 topological sectors with that of the Random Matrix Theory predictions. The ratios of expectation values of the lowest eigenvalues and the cumulative eigenvalue distributions are studied for all combinations of k and ?. After including the finite size correction from NL order chiral perturbation theory we obtained for the chiral condensate in the scheme [?(2?GeV)]1/3 = 0.239(12) GeV, where the error is statistical only.
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