Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..586...55b&link_type=abstract
RELATIVISTIC ASTROPHYSICS: 20th Texas Symposium. AIP Conference Proceedings, Volume 586, pp. 55-57 (2001).
Astronomy and Astrophysics
Astrophysics
2
Wave Propagation And Interactions
Scientific paper
We investigate the propagation of light for metrics in which the approximation of geometrical (ray) optics breaks down due to nonadiabatically rapid (in space or time) variations of the curved-spacetime geometry. This may lead to wavelength-dependent effects such as diffraction and dispersion. The rapidly-expanding cosmological spacetimes are good candidate metrics for such effects. We find that conformal invariance prevents such violations of adiabaticity for the spatially-flat Friedmann Robertson-Walker metric; but if one breaks conformal invariance via the anisotropic (but homogeneous) Kasner metrics, then the propagation of light waves will be shown to deviate from the predictions of simple ray-tracing. .
No associations
LandOfFree
Diffractive propagation of light waves in a class of anisotropically-expanding cosmological models does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Diffractive propagation of light waves in a class of anisotropically-expanding cosmological models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diffractive propagation of light waves in a class of anisotropically-expanding cosmological models will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1100212