Scattering of photons by an external gravitational field in the framework of higher-derivative gravity

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2000-07-01

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Progress Theoretical Physics Publication Office

Resumo

The scattering of photons by a static gravitational field, treated as an external field, is discussed in the context of gravity with higher derivatives. It is shown that the R-2 sector of the theory does not contribute to the photon scattering, whereas the R-mu nu(2) sector produces dispersive (energy-dependent) photon propagation.

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Progress of Theoretical Physics. Kyoto: Progress Theoretical Physics Publication Office, v. 104, n. 1, p. 103-122, 2000.