A Double Sigma Model for Double Field Theory
High Energy Physics - Theory
2012-04-27 v3
Abstract
We define a sigma model with doubled target space and calculate its background field equations. These coincide with generalised metric equation of motion of double field theory, thus the double field theory is the effective field theory for the sigma model.
Keywords
Cite
@article{arxiv.1111.1828,
title = {A Double Sigma Model for Double Field Theory},
author = {Neil B. Copland},
journal= {arXiv preprint arXiv:1111.1828},
year = {2012}
}
Comments
26 pages, v1: 37 pages, v2: references added, v3: updated to match published version - background and detail of calculations substantially condensed, motivation expanded, refs added, results unchanged