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JHEP04(2017)123.pdf | 657.17 kB | Adobe PDF | 見る/開く |
タイトル: | Generalized gravity from modified DFT |
著者: | Sakatani, Yuho Uehara, Shozo Yoshida, Kentaroh |
著者名の別形: | 吉田, 健太郎 |
キーワード: | String Duality Supergravity Models Integrable Field Theories |
発行日: | Apr-2017 |
出版者: | Springer Nature |
誌名: | Journal of High Energy Physics |
巻: | 2017 |
論文番号: | 123 |
抄録: | Recently, generalized equations of type IIB supergravity have been derived from the requirement of classical kappa-symmetry of type IIB superstring theory in the Green-Schwarz formulation. These equations are covariant under generalized T -duality transformations and hence one may expect a formulation similar to double field theory (DFT). In this paper, we consider a modification of the DFT equations of motion by relaxing a condition for the generalized covariant derivative with an extra generalized vector. In this modified double field theory (mDFT), we show that the flatness condition of the modified generalized Ricci tensor leads to the NS-NS part of the generalized equations of type IIB supergravity. In particular, the extra vector fields appearing in the generalized equations correspond to the extra generalized vector in mDFT. We also discuss duality symmetries and a modification of the string charge in mDFT. |
著作権等: | © The Author(s) 2017.Published in cooperation with JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0 |
URI: | http://hdl.handle.net/2433/225274 |
DOI(出版社版): | 10.1007/JHEP04(2017)123 |
出現コレクション: | 学術雑誌掲載論文等 |
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