Improved gauge actions on anisotropic lattices. II. η in the medium coupling region
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ID | 23373 |
本文ファイル | |
著者 |
Sakai, Sunao
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NDC |
物理学
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抄録(英) | 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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掲載誌名 |
Physical Review D - Particles, Fields, Gravitation and Cosmology
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巻 | 69巻
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号 | 11号
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開始ページ | 114504
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出版年月日 | 2004
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出版者 | The American Physical Society
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ISSN | 1550-7998
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NCID | |
出版者DOI | |
言語 |
英語
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NII資源タイプ |
学術雑誌論文
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広大資料タイプ |
学術雑誌論文
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DCMIタイプ | text
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フォーマット | application/pdf
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著者版フラグ | publisher
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権利情報 | Copyright (c) 2004 The American Physical Society
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関連情報URL | |
部局名 |
情報メディア教育研究センター
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