Document Type

Article

Publication/Presentation Date

8-7-2009

Abstract/Description

Modifications to the classic time-delay effect and Doppler shift in general relativity (GR) are studied in the context of the Lorentz-violating standard-model extension (SME). We derive the leading Lorentz- violating corrections to the time-delay and Doppler shift signals, for a light ray passing near a massive body. It is demonstrated that anisotropic coefficients for Lorentz violation control a time-dependent behavior of these signals that is qualitatively different from the conventional case in GR. Estimates of sensitivities to gravity-sector coefficients in the SME are given for current and future experiments, including the recent Cassini solar conjunction experiment.

Publication Title

Physical Review D

DOI

https://doi.org/10.1103/PhysRevD.80.044004

Required Publisher’s Statement

© 2009 American Physical Society. This article is also available from the publisher at https://doi.org/10.1103/PhysRevD.80.044004

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