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Lee-Yang zero analysis for the study of QCD phase structure
http://hdl.handle.net/10191/27656
http://hdl.handle.net/10191/27656fdbd0185-a1cb-4561-adeb-0b6573b90297
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
73_5_054502.pdf (1.1 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 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 | ||||||
| タイトル | Lee-Yang zero analysis for the study of QCD phase structure | |||||
| 言語 | en | |||||
| 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.
× 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 |
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| 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 | ||||||
| 値 | publisher | |||||
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Cite as
Ejiri, S., 2006, Lee-Yang zero analysis for the study of QCD phase structure: American Physical Society, 054502– p.
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