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arXiv 1208.4459hep-th
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超引力Riemann曲率修正的T-对偶性

T-duality of the Riemann curvature corrections to supergravity

Mohammad R. Garousi

摘要:

在T-对偶变换下,研究了已知的超引力作用量在$α'^3$阶的黎曼曲率修正。利用线性T-对偶作用量的相容性和S-矩阵计算作为指导原则,我们发现了四个$B$ -场强的耦合和两个黎曼曲率和两个$B$ -场强的耦合,它们的阶数为$α'^3$。利用S-矩阵计算,我们还发现了这个顺序的弦框架中的新的声子耦合。

英文摘要:

We examine the known Riemann curvature corrections to the supergravity action at order $α'^3$ under the T-duality transformations. Using the compatibility of the action with the linear T-duality and with the S-matrix calculations as guiding principles, we have found the couplings of four $B$-field strengths and the couplings of two Riemann curvatures and two $B$-field strengths at order $α'^3$. Using the S-matrix calculations we have also found new dilaton couplings in the string frame at this order.

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