Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/29897
Title: | Optical properties of dynamical axion backgrounds |
Author: | McDonald, Jamie I. Ventura, Luís B. |
Issue Date: | 15-Jun-2020 |
Publisher: | American Physical Society |
Abstract: | We discuss spectral distortions, time delays and refraction of light in an axion or axion-plasma background. This involves solving the full set of geodesic equations associated to the system of Hamiltonian optics, allowing us to self-consistently take into account the evolution of the momentum, frequency and position of photons. We support our arguments with analytic approximations and full numerical solutions. Remarkably, the introduction of a plasma enhances the sensitivity to axion-induced birefringence, allowing these effects to occur at linear order in the axion-photon coupling even when the axion background is not present at either the emission or detection points. This suggests a general enhancement of axion-induced birefringence when the background refractive index is different from one. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/29897 |
DOI: | 10.1103/PhysRevD.101.123503 |
ISSN: | 2470-0010 |
Appears in Collections: | CIDMA - Artigos DFis - Artigos GGDG - Artigos |
Files in This Item:
File | Description | Size | Format | |
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SmallVersion_18_03.pdf | 440.52 kB | Adobe PDF | View/Open |
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