Completing $R^4$ using $O(d,d)$
High Energy Physics - Theory
2022-09-07 v3
Abstract
The tree-level string effective action is known to contain quartic Riemann terms with coefficient . In the case of the type II string this is the first correction. We use the requirement that the action reduced on a -torus should have an symmetry to find the B-field couplings up to fifth order in fields. The answer turns out to have a surprisingly intricate structure.
Keywords
Cite
@article{arxiv.2111.00018,
title = {Completing $R^4$ using $O(d,d)$},
author = {Linus Wulff},
journal= {arXiv preprint arXiv:2111.00018},
year = {2022}
}
Comments
23 pages; v2: Clarifications and details of comparison to literature added; v3: Added argument that condition imposed is also sufficient for O(d,d). Published version