Baukh, Viktor and Zhuk, Alexander and Kahniashvili, Tina (2007) Extra dimensions and Lorentz invariance violation. Physical Review D, 76.
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Abstract
We consider an effective model of photon interaction with a scalar field corresponding to conformal excitations of the internal space (geometrical moduli/gravexcitons). We demonstrate that this interaction results in a modified dispersion relation for photons, and, consequently, the photon group velocity depends on the energy implying the propagation time-delay effect. We suggest the use of the experimental bounds of the time delay of gamma-ray burst photon propagation as an additional constraint for the gravexciton parameters.
| Item Type: | Article |
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| Subjects: | Q Science > QC Physics |
| Depositing User: | Prof. Tina Kahniashvili |
| Date Deposited: | 29 Jan 2014 19:48 |
| Last Modified: | 27 Mar 2015 07:02 |
| URI: | http://eprints.iliauni.edu.ge/id/eprint/727 |
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