arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0906.3033hep-th
收藏

通量紧化中的开弦波函数

Open string wavefunctions in flux compactifications

Pablo G. Camara, Fernando Marchesano

摘要:

我们考虑了SU(3)结构流形上的I型超引力在RR通量和磁化D9-膜存在下的紧化,并分析了与D9-膜世界体积场相关的广义Dirac和Laplace-Beltrami算子.这些紧化是T-对偶的标准IIB型环形orientifolds与NSNS和RR 3-形式通量和D3/D 7膜。通过使用表示论和调和分析的技术,可以计算李群及其子群的开弦波函数的谱,正如我们用显式扭曲环面例子所说明的那样。我们发现不可约酉表示的Kaloper-Myers代数和家庭的卡鲁扎-克莱因激发之间的对应关系。我们在上述通量紧致化中计算了物质场的2点和3点耦合,并与四维有效超引力的结果进行了比较。

英文摘要:

We consider compactifications of type I supergravity on manifolds with SU(3) structure, in the presence of RR fluxes and magnetized D9-branes, and analyze the generalized Dirac and Laplace-Beltrami operators associated to the D9-brane worldvolume fields. These compactifications are T-dual to standard type IIB toroidal orientifolds with NSNS and RR 3-form fluxes and D3/D7 branes. By using techniques of representation theory and harmonic analysis, the spectrum of open string wavefunctions can be computed for Lie groups and their quotients, as we illustrate with explicit twisted tori examples. We find a correspondence between irreducible unitary representations of the Kaloper-Myers algebra and families of Kaluza-Klein excitations. We perform the computation of 2- and 3-point couplings for matter fields in the above flux compactifications, and compare our results with those of 4d effective supergravity.

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。

↑