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  1. 050 理学部
  2. 10 学術雑誌論文
  3. 10 査読済論文
  1. 0 資料タイプ別
  2. 01 学術雑誌論文

Lee-Yang zero analysis for the study of QCD phase structure

http://hdl.handle.net/10191/27656
http://hdl.handle.net/10191/27656
fdbd0185-a1cb-4561-adeb-0b6573b90297
名前 / ファイル ライセンス アクション
73_5_054502.pdf 73_5_054502.pdf (1.1 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2014-06-23
タイトル
タイトル Lee-Yang zero analysis for the study of QCD phase structure
タイトル
言語 en
タイトル Lee-Yang zero analysis for the study of QCD phase structure
言語
言語 eng
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Ejiri, S.

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Ejiri, S.

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抄録
内容記述タイプ Abstract
内容記述 We comment on the Lee-Yang zero analysis for the study of the phase structure of QCD at high temperature and baryon number density by Monte-Carlo simulations. We find that the sign problem for nonzero density QCD induces a serious problem in the finite volume scaling analysis of the Lee-Yang zeros for the investigation of the order of the phase transition. If the sign problem occurs at large volume, the Lee-Yang zeros will always approach the real axis of the complex parameter plane in the thermodynamic limit. This implies that a scaling behavior which would suggest a crossover transition will not be obtained. To clarify this problem, we discuss the Lee-Yang zero analysis for SU(3) pure gauge theory as a simple example without the sign problem, and then consider the case of nonzero density QCD. It is suggested that the distribution of the Lee-Yang zeros in the complex parameter space obtained by each simulation could be more important information for the investigation of the critical endpoint in the (T,μ q ) plane than the finite volume scaling behavior.
書誌情報 Physical Review D
en : Physical Review D

巻 73, 号 5, p. 054502, 発行日 2006-03
出版者
出版者 American Physical Society
ISSN
収録物識別子タイプ ISSN
収録物識別子 15507998
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA00773624
DOI
識別子タイプ DOI
関連識別子 info:doi/10.1103/PhysRevD.73.054502
権利
権利情報 (C) 2006 American Physical Society
著者版フラグ
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