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タイトル: | Fluctuation effects on QCD phase diagram at strong coupling |
著者: | Terukazu, Ichihara Akira, Ohnishi |
著者名の別形: | 市原, 輝一 大西, 明 |
発行日: | 21-May-2015 |
出版者: | Sissa Medialab |
誌名: | Proceedings of Science |
巻: | 214 |
論文番号: | 188 |
抄録: | We study the QCD phase diagram away from the strong coupling limit (SCL) with fluctuation ef- fects in the auxiliary field Monte-Carlo (AFMC) method. First, we give an effective action which contains next-to-leading order (NLO) finite coupling effects of the strong coupling expansion as well as fluctuation effects. Second, we examine NLO effects of the strong coupling expansion in AFMC at zero quark density. We find that the chiral condensate is reduced by both NLO terms from temporal plaquettes and fluctuation effects, and almost no dependence on NLO terms from spatial plaquettes in the current analysis. These behaviors can be understood from the modifica- tion of the mass and the wave function renormalization factor by auxiliary fields as in the mean field analysis and the fluctuation effects in the strong coupling limit. |
記述: | <The 32nd International Symposium on Lattice Field Theory (LATTICE2014) - Nonzero Temperature and Density> 23-28 June, 2014. Columbia University New York, NY. |
著作権等: | © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). |
URI: | http://hdl.handle.net/2433/233616 |
DOI(出版社版): | 10.22323/1.214.0188 |
出現コレクション: | 学術雑誌掲載論文等 |
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