Open String Gravity?
High Energy Physics - Theory
2008-11-26 v3
Abstract
We present a new application of Boundary String Field Theory: calculating the induced-gravity action on a D-brane. Using a simple quadratic tachyon potential to model a D-brane fluctuating in the flat target space we derive the effective action in terms of the extrinsic curvature to all orders in alpha'. We identify both the Born-Infeld structure as well as the Einstein-Hilbert term at order alpha'. This corroborates the conjectured existence of the latter term in the brane-world scenarios. The higher order terms in Ricci scalar and extrinsic curvature suggest a pattern which calls for an explanation.
Keywords
Cite
@article{arxiv.hep-th/0406245,
title = {Open String Gravity?},
author = {Yeuk-Kwan E. Cheung and Mark Laidlaw and Konstantin Savvidy},
journal= {arXiv preprint arXiv:hep-th/0406245},
year = {2008}
}
Comments
12 pages, JHEP class; references added; bbl file attached