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 1612.07544hep-th
收藏

实拓扑弦振幅

Real topological string amplitudes

K. S. Narain, N. Piazzalunga, A. Tanzini

摘要:

我们讨论的物理超弦关联函数在类型I理论(或等价的类型II与orientifold),计算实拓扑弦振幅。在世界面欧拉特征线$χ$不变的情况下,我们考虑实拓扑振幅$G_χ$的全纯导数所对应的相关器.这在低能量有效作用中对应于N=2的Weyl多重态,适当地减少到定向折叠不变部分,并提高到幂$g'=-χ+1$。我们证明了物理弦相关器精确地给出了拓扑振幅的全纯导数。最后,我们将这种方法应用到标准的闭定向的情况下,以及,并证明了类似的陈述的拓扑振幅$F_g$。

英文摘要:

We discuss the physical superstring correlation functions in type I theory (or equivalently type II with orientifold) that compute real topological string amplitudes. We consider the correlator corresponding to holomorphic derivative of the real topological amplitude $G_χ$, at fixed worldsheet Euler characteristic $χ$. This corresponds in the low-energy effective action to N=2 Weyl multiplet, appropriately reduced to the orientifold invariant part, and raised to the power $g'=-χ+1$. We show that the physical string correlator gives precisely the holomorphic derivative of topological amplitude. Finally, we apply this method to the standard closed oriented case as well, and prove a similar statement for the topological amplitude $F_g$.

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。

↑