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Remarks on the multiparameter reweighting method for the study of lattice QCD at nonzero temperature and density
http://hdl.handle.net/10191/27646
http://hdl.handle.net/10191/2764645bf3c65-c3c0-43f5-a63e-fe07ed4eb18e
名前 / ファイル | ライセンス | アクション |
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69_9_094506.pdf (1.2 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 | Remarks on the multiparameter reweighting method for the study of lattice QCD at nonzero temperature and density | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Remarks on the multiparameter reweighting method for the study of lattice QCD at nonzero temperature and density | |||||
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 reweighting method for the study of finite density lattice QCD. We discuss the applicable parameter range of the reweighting method for models that have more than one simulation parameter. The applicability range is determined by the fluctuations of the modification factor of the Boltzmann weight. In some models having a first order phase transition, the fluctuations are minimized along the phase transition line if we assume that the pressure in the hot and the cold phases is balanced at the first order phase transition point. This suggests that the reweighting method with two parameters is applicable in a wide range for the purpose of tracing out the phase transition line in the parameter space. To confirm the usefulness of the reweighting method for two-flavor QCD, the fluctuations of the reweighting factor are measured by numerical simulations for the cases of reweighting in the quark mass and chemical potential directions. The relation to the phase transition line is discussed. Moreover, the sign problem caused by the complex phase fluctuations is studied. | |||||
書誌情報 |
Physical Review D en : Physical Review D 巻 69, 号 9, p. 094506, 発行日 2004-05 |
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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.69.094506 | |||||
権利 | ||||||
権利情報 | (C) 2004 American Physical Society | |||||
著者版フラグ | ||||||
値 | publisher |