Higher Derivative Brane Couplings from T-Duality
High Energy Physics - Theory
2010-09-16 v2
Abstract
The Wess-Zumino coupling on D-branes in string theory is known to receive higher derivative corrections which couple the Ramond-Ramond potential to terms involving the square of the spacetime curvature tensor. Consistency with T-duality implies that the branes should also have four-derivative couplings that involve the NS-NS B-field. We use T-duality to predict some of these couplings. We then confirm these results with string worldsheet computations by evaluating disc amplitudes with insertions of one R-R and two NS-NS vertex operators.
Keywords
Cite
@article{arxiv.1007.0441,
title = {Higher Derivative Brane Couplings from T-Duality},
author = {Katrin Becker and Guangyu Guo and Daniel Robbins},
journal= {arXiv preprint arXiv:1007.0441},
year = {2010}
}
Comments
30 pages, 1 figure, references added