Relativistic Quantum Gravity at a Lifshitz Point
Germani, C, Kehagias, A and Sfetsos, K (2009) Relativistic Quantum Gravity at a Lifshitz Point
Full text not available from this repository.Abstract
We show that the Horava theory for the completion of General Relativity at UV scales can be interpreted as a gauge fixed theory, and it can be extended to an invariant theory under the full group of four-dimensional diffeomorphisms. In this respect, although being fully relativistic, it results to be locally anisotropic in the time-like and space-like directions defined by a family of irrotational observers. We show that this theory propagates generically three degrees of freedom: two of them are related to the four-dimensional diffeomorphism invariant graviton (the metric) and one is related to a propagating scalar mode. Finally, we note that in the present formulation, matter can be consistently coupled to gravity.
Item Type: | Article | ||||||||||||
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Divisions : | Surrey research (other units) | ||||||||||||
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Date : | 7 June 2009 | ||||||||||||
DOI : | 10.1088/1126-6708/2009/09/060 | ||||||||||||
Uncontrolled Keywords : | hep-th, hep-th, astro-ph.CO, gr-qc, hep-ph | ||||||||||||
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Depositing User : | Symplectic Elements | ||||||||||||
Date Deposited : | 17 May 2017 12:26 | ||||||||||||
Last Modified : | 24 Jan 2020 22:14 | ||||||||||||
URI: | http://epubs.surrey.ac.uk/id/eprint/835325 |
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