Fluctuation effects on QCD phase diagram at strong coupling

• 市原, 輝一

  Department of Physics & Yukawa Institute for Theoretical Physics, Kyoto University

• 大西, 明

  Yukawa Institute for Theoretical Physics, Kyoto University

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.

<The 32nd International Symposium on Lattice Field Theory (LATTICE2014) - Nonzero Temperature and Density> 23-28 June, 2014. Columbia University New York, NY.

収録刊行物

• Proceedings of Science

  Proceedings of Science 214 2015-05-21

  Sissa Medialab

詳細情報

• CRID: 1050570796223575680
• NII論文ID: 120006654217
• ISSN: 18248039
• HANDLE: 2433/233616
• 本文言語コード: en
• 資料種別: conference paper
• データソース種別:
  • IRDB
  • CiNii Articles