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Topological susceptibility in 2-flavor lattice QCD with fixed topololgy

Presenter: Ting-Wai Chiu — National Taiwan University

S. Aoki, T.W. Chiu, H. Fukaya, S. Hashimoto, T.H. Hsieh, T. Kaneko, H. Matsufuru, K. Ogawa, T. Onogi, N. Yamada (JLQCD and TWQCD Collaborations)

We determine the topological susceptibility χt in a fixed topological sector generated by lattice simulations of two-flavor QCD with overlap Dirac fermion, on a 163× 32 lattice with lattice spacing ∼ 0.11 fm. The χt is extracted from the plateau (at large time separation) of the time-correlation function of the topological charges in two sub-volumes.