Improved gauge actions on anisotropic lattices. II. η in the medium coupling region
Physical Review D - Particles, Fields, Gravitation and Cosmology 69 巻 11 号
114504- 頁
2004 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Improved gauge actions on anisotropic lattices. II. η in the medium coupling region
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| 作成者 |
Sakai Sunao
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| 収録物名 |
Physical Review D - Particles, Fields, Gravitation and Cosmology
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| 巻 | 69 |
| 号 | 11 |
| 開始ページ | 114504 |
| 抄録 |
For improved actions composed of plaquette and rectangular six-link loops, η, the ratio of renormalized to bare anisotropies, is calculated for ξ=2, 3, 4, and 6 in the β region where numerical simulations such as hadron spectroscopy are currently carried out. The β dependence of η for the renormalization-group-improved actions is quite different from those of the standard and Symanzik actions. In the Iwasaki and DBW2 (doubly blocked from Wilson action in two-coupling space) actions, η remains almost constant in a wide range of β, which is also different from the one-loop perturbative results, while in the case of the Symanzik action, η increases as β decreases, which is qualitatively similar to the perturbative result, but the slope is steeper. In the calculation of η close to and in the confined phase, we have applied a link integration method to suppress the fluctuation of the gauge field. Some technical details of the integration method are summarized.
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| NDC分類 |
物理学 [ 420 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
The American Physical Society
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| 発行日 | 2004 |
| 権利情報 |
Copyright (c) 2004 The American Physical Society
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 1550-7998
[DOI] 10.1103/PhysRevD.69.114504
[NCID] AA00773624
[DOI] http://dx.doi.org/10.1103/PhysRevD.69.114504
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