Speaker
Tung-Han Hsieh
(Research Center for Applied Sciences, Academia Sinica)
Description
We determine the topological charge and its fluctuations for the gauge configurations generated by lattice simulations of 2 flavors QCD with optimal domain-wall fermion, on a $ 16^3 \times 32 \times 16 $ lattice with Wilson gauge action at $ \beta = 5.90 $. We project the low-lying modes of the lattice Dirac operator with the Lanczos thick-restart algorithm, and obtain the topological charge, the topological susceptibility ($\chi_t$) and the second normalized cumulant ($c_4$). Our preliminary results of $\chi_t$ and $c_4$ agree with the sea-quark mass dependence predicted by the chiral perturbation theory.
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Primary author
Tung-Han Hsieh
(Research Center for Applied Sciences, Academia Sinica)
Co-authors
Kenji Ogawa
(Department of Physics, National Taiwan University)
Prof.
Ting-Wai Chiu
(Department of Physics, National Taiwan University)
Yao-Yuan Mao
(Department of Physics, National Taiwan University)
