理論セミナー

日時: 2011-09-27 11:00 - 12:00
場所: 研究本館1階会議室1
会議名: The lattice study of many flavor QCD with twisted boundary condition
連絡先: 関野 恭弘、sekino-AT-post.kek.jp
講演者: 小川 兼司 氏  (National Chiao-Tung University, Taiwan)
講演言語: 英語
URL: http://research.kek.jp/group/www-theory/schedule.html
アブストラクト: Incorporated with twisted boundary condition, Polyakov loop correlators can give a definition of renormalized coupling. We employ this scheme for step scaling function in the search of conformal fixed point. Staggered fermion and plaquette gauge action are used in the lattice simulation with six different lattice sizes L = 20, 16, 12, 10, 8 and 6. For the largest lattice size L = 20, we used a large number of GPU's and accumulated 3,000,000 trajectories in total. We found that the step scaling function sigma(u) is consistent with u in the low beta region. It strongly suggests the existence of conformal fixed point. Some details of our analysis and simulations will also be presented.

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