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#### Propagation of polarized gravitational waves

##### MPS-Authors

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##### Fulltext (public)

2012.08363.pdf

(Preprint), 265KB

##### Supplementary Material (public)

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##### Citation

Andersson, L., Joudioux, J., Oancea, M., & Raj, A. (in preparation). Propagation of polarized gravitational waves.

Cite as: http://hdl.handle.net/21.11116/0000-0007-9802-B

##### Abstract

The propagation of high-frequency gravitational waves can be analyzed using
the geometrical optics approximation. In the case of large but finite
frequencies, the geometrical optics approximation is no longer accurate, and
polarization-dependent corrections at first order in wavelength modify the
propagation of gravitational waves via a spin-orbit coupling mechanism. We
present a covariant derivation from first principles of effective ray equations
describing the propagation of polarized gravitational waves, up to first-order
terms in wavelength, on arbitrary spacetime backgrounds. The effective ray
equations describe a gravitational spin Hall effect for gravitational waves and
are of the same form as those describing the gravitational spin Hall effect of
light, derived from Maxwell's equations.