Cosmological topologically massive gravitons and photons
- Creators
- Carlip, S.
- Deser, S.
- Waldron, A.
- Wise, D. K.
Abstract
We study topologically massive (2+1)-dimensional gravity with a negative cosmological constant. The masses of the linearized curvature excitations about AdS3 backgrounds are not only shifted from their flat background values but also, more surprisingly, split according to chirality. For all finite values of the topological mass, we find a single bulk degree of freedom with positive energy, and exhibit a complete set of normalizable, finite-energy wave packet solutions. This model can also be written as a sum of two higher-derivative SL(2,R) Chern–Simons theories, weighted by the central charges of the boundary conformal field theory. At two particular 'critical' values of the couplings, one of these central charges vanishes, and linearized topologically massive gravity becomes equivalent to topologically massive electromagnetism; however, the physics of the bulk wave packets remains unaltered here.
Additional Information
© 2009 IOP Publishing Ltd. Received 18 December 2008. Published 10 March 2009. We thank D Grumiller, R Jackiw, N Johansson, W Li, D Marolf, W Song and A Strominger for discussions. This work was supported by the National Science Foundation under grants PHY07-57190 and DMS-0636297 and by the Department of Energy under grants DE-FG02-91ER40674 and DE-FG02-92-ER40701.Attached Files
Submitted - 0803.3998.pdf
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Additional details
- Eprint ID
- 13988
- DOI
- 10.1088/0264-9381/26/7/075008
- Resolver ID
- CaltechAUTHORS:20090415-141335236
- PHY07-57190
- NSF
- DMS-0636297
- NSF
- DE-FG02-91ER40674
- Department of Energy (DOE)
- DE-FG02-92-ER40701
- Department of Energy (DOE)
- Created
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2009-04-16Created from EPrint's datestamp field
- Updated
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2022-07-12Created from EPrint's last_modified field