English

$\alpha'$-corrections to DBI action via T-duality constraint

High Energy Physics - Theory 2021-04-16 v3

Abstract

It is known that Dp_p-brane effective action at the leading order of α\alpha' in flat space-time which is given by DBI action, transforms to Dp1_{p-1}-brane effective action under standard T-duality transformations of the open string gauge bosons and transverse scalar fields. Extending this duality to order α\alpha', one may find corrections to the DBI action which include the second fundamental form Ω\Omega and the covariant derivative of gauge field strength DFDF, as well as the corrections to the T-duality transformations. Using this idea, up to two parameters, we have found all 81 covariant couplings of DFDFD FD F and ΩΩ\Omega\Omega with zero, two, four and six FF's. The four gauge field couplings that the T-duality constraint fixes are consistent with the known couplings in the literature.

Keywords

Cite

@article{arxiv.1809.10377,
  title  = {$\alpha'$-corrections to DBI action via T-duality constraint},
  author = {Saman Karimi and Mohammad R. Garousi},
  journal= {arXiv preprint arXiv:1809.10377},
  year   = {2021}
}

Comments

24 pages, no figure, Latex file;v2: the version appears in npb, v3: a mistake in the footnote 4 is corrected

R2 v1 2026-06-23T04:20:04.663Z