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Gravitational Rainbow

Antonio Accioly·Harold Blas
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Abstract

It is shown that unlike Einstein's gravity quadratic gravity produces dispersive photon propagation. The energy-dependent contribution to the deflection of photons passing by the Sun is computed and subsequently the angle at which the visible spectrum would be spread over is plotted as a function of the $R_{μν}^2-$sector mass.

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Antonio Accioly, Harold Blas. 2001-07-01. Gravitational Rainbow. https://doi.org/10.1103/physrevd.64.067701

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