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Scattering of electromagnetic waves by static wormholes |
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| Authors: | B.?Nasr?Esfahani mailto:ba_nasre@sci.ui.ac.ir" title=" ba_nasre@sci.ui.ac.ir" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author |
| Affiliation: | (1) Department of Physics, Faculty of Sciences, University of Isfahan, Isfahan, 81744, Iran |
| Abstract: | Scattering of electromagnetic waves by static and traversable wormholes is discussed. Based on the fact that these spacetimes have no horizon, and regarding their non-trivial topology, we have developed the perturbation theory of scattering and the Born approximation for obtaining the differential scattering cross section. Some of the zeros of the scattering pattern at long wavelengths are determined which can be used for estimating the radius of the throat. The known result that in scattering by static spacetimes the linear polarization remains unchanged is verified here. |
| Keywords: | Wormholes Electromagnetic waves Perturbation theory of scattering Polarization |
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