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ヤマダ ヒロフミ
Hirofumi Yamada
山田 宏文 所属 千葉工業大学 情報変革科学部 教育センター(情報変革科学部) 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2007/08 |
| 形態種別 | 学術雑誌 |
| 査読 | 査読あり |
| 標題 | Delta expansion on the lattice and dilated scaling region |
| 執筆形態 | 単著 |
| 掲載誌名 | Physical Review D |
| 出版社・発行元 | The American Physical Society |
| 巻・号・頁 | 76,pp.045007(1~8) |
| 概要 | A new kind of delta expansion is applied on the lattice to the d=2 non-linear sigma model at N=infinity and N=1 which corresponds to the Ising model. We introduce the parameter delta for the dilation of the scaling region of the model with the replacement of the lattice spacing a to (1-delta)^{1/2}a. Then, we demonstrate that the expansion in delta admits an approximation of the scaling behavior of the model at both limits of N from the information at a large lattice spacing a. |
| DOI | 10.1103/PhysRevD.76.045007 |