Topological Charge in Two Flavors QCD with Optimal Domain-Wall Fermion

Details Topological Charge in Two Flavors QCD with Optimal Domain-Wall Fermion Topological Charge in Two Flavors QCD with Optimal Domain-Wall Fermion

2011-01-02

arxiv.org/abs/1101.0402v1

PoS Lattice2010:085,2010

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 3 figures, talk presented at the 28th International Symposium on Lattice Field Theory, Lattice 2010, June 14-19, 2010

Scientific paper

We measure the topological charge of the gauge configurations generated by lattice simulations of 2 flavors QCD on a $ 16^3 \times 32 $ lattice, with Optimal Domain-Wall Fermion (ODWF) at $ N_s = 16 $ and plaquette gauge action at $ \beta = 5.90 $. Using the Adaptive Thick-Restart Lanczos algorithm, we project the low-lying modes of the 4D effective Dirac operator of ODWF, and obtain the topological charge and topological susceptibility. Our result of topological susceptibility agrees with the sea-quark mass dependence predicted by the chiral perturbation theory, and provides a determination of the chiral condensate.

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