Time Delay of Radiation from Gamma-Ray Burst Sources as a Test for a Model of the Universe
Yu. S. Grishkan, V. B. Petkov, E. G. Vertogradova
Abstract
The estimation of light velocity dispertion caused by quantum fluctuations influence on electromagnetic wave propogation in four-dimensional space-time is presented. Analytical cosmological solutions for the flat and open Universe for the case of cosmic vacuum model are obtained. The time delay of cosmic gamma-ray burst radiation is calculated. The delay is explained by propogation of dispersive electromagnetic wave in the expanding Universe. It is shown that the delay value depends on a model of the Universe. We conclude that to discern a model of the Universe measurement accuracy of parameter Δt / ΔEγ should be better than 10-5 s / MeV.
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