科研之友
微信
新浪微博
Facebook
分享链接
摘要
We use the compatibility of D-brane action with linear T-duality, S-duality, and with S-matrix elements as guiding principles to find all world volume couplings of one massless closed string and two open strings at order alpha'(2) in type-II superstring theories. In particular, we find that the squares of second fundamental form appear only in world volume curvatures and confirm the observation that the dilaton appears in the string frame action via the transformation (R) over cap (mu nu) -> (R) over cap (mu nu) + del(mu)del(nu)Phi.
- 出版日期2015-11-18
