ダウンロード数: 100
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
JHEP02(2018)128.pdf | 394.43 kB | Adobe PDF | 見る/開く |
タイトル: | Flow equation of N=1 supersymmetric O(N) nonlinear sigma model in two dimensions |
著者: | Aoki, Sinya Kikuchi, Kengo Onogi, Tetsuya |
著者名の別形: | 青木, 愼也 |
キーワード: | Field Theories in Lower Dimensions Sigma Models Supersymmetric Effective Theories |
発行日: | 21-Feb-2018 |
出版者: | Springer Nature |
誌名: | Journal of High Energy Physics |
巻: | 2018 |
論文番号: | 128 |
抄録: | We study the flow equation for the N = 1 supersymmetric O(N ) nonlinear sigma model in two dimensions, which cannot be given by the gradient of the action, as evident from dimensional analysis. Imposing the condition on the flow equation that it respects both the supersymmetry and the O(N ) symmetry, we show that the flow equation has a specific form, which however contains an undetermined function of the supersymmetric derivatives D and D. Taking the most simple choice, we propose a flow equation for this model. As an application of the flow equation, we give the solution of the equation at the leading order in the large N expansion. The result shows that the flow of the superfield in the model is dominated by the scalar term, since the supersymmetry is unbroken in the original model. It is also shown that the two point function of the superfield is finite at the leading order of the large N expansion. |
著作権等: | © The Authors. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
URI: | http://hdl.handle.net/2433/250355 |
DOI(出版社版): | 10.1007/JHEP02(2018)128 |
出現コレクション: | 学術雑誌掲載論文等 |
このリポジトリに保管されているアイテムはすべて著作権により保護されています。