Dirichlet boundary value problem for Chern-Simons modified gravity
General Relativity and Quantum Cosmology
2008-11-26 v2 Astrophysics
High Energy Physics - Theory
Abstract
Chern-Simons modified gravity comprises the Einstein-Hilbert action and a higher-derivative interaction containing the Chern-Pontryagin density. We derive the analog of the Gibbons-Hawking-York boundary term required to render the Dirichlet boundary value problem well-defined. It turns out to be a boundary Chern-Simons action for the extrinsic curvature. We address applications to black hole thermodynamics.
Cite
@article{arxiv.0803.1485,
title = {Dirichlet boundary value problem for Chern-Simons modified gravity},
author = {D. Grumiller and R. Mann and R. McNees},
journal= {arXiv preprint arXiv:0803.1485},
year = {2008}
}
Comments
4 pages, revtex4, v2: added Refs., made one statement stronger, added footnote and added paragraph on single field inflation