arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0708.2287hep-th
收藏

Q7-branes及其与IIB超引力的耦合

Q7-branes and their coupling to IIB supergravity

Eric Bergshoeff, Jelle Hartong, Dmitri Sorokin

摘要:

利用IIB超引力轴-子陪集SL(2,R)/SO(2)的新基,我们证明了属于SL(2,R)对偶群的不同共轭类的7-膜如何自然地耦合到IIB超引力,并具有适当的源项,其特征在于SL(2,R)荷矩阵Q.共轭类由Q的行列式的值决定。(p,q)7-膜是共轭类detQ = 0中的膜。共轭类detQ > 0中的7-膜用三个数(p,q,r)来标记,它们参数化矩阵Q,称为Q7-膜。我们构造了Q7-膜的完全玻色子Wess-Zumino项。为了实现Q7膜与IIB超引力规范场的规范不变耦合,需要在Q7膜世界体积上引入两个不同Born-Infeld场的SL(2,R)偶线。

英文摘要:

We show how, by making use of a new basis of the IIB supergravity axion-dilaton coset, SL(2,R)/SO(2), 7-branes that belong to different conjugacy classes of the duality group SL(2,R) naturally couple to IIB supergravity with appropriate source terms characterized by an SL(2,R) charge matrix Q. The conjugacy classes are determined by the value of the determinant of Q. The (p,q) 7-branes are the branes in the conjugacy class detQ = 0. The 7-branes in the conjugacy class detQ > 0 are labelled by three numbers (p,q,r) which parameterize the matrix Q and will be called Q7-branes. We construct the full bosonic Wess--Zumino term for the Q7-branes. In order to realize a gauge invariant coupling of the Q7-brane to the gauge fields of IIB supergravity it is necessary to introduce an SL(2,R) doublet of two distinct Born--Infeld fields on the Q7-brane world-volume.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑