期刊
PHYSICAL REVIEW D
卷 103, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.103.L081306
关键词
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资金
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [CRC-TR 211, 315477589 TRR 211]
- German Federal Ministry of Education and Research (BMBF) [05A17PB1]
In curved spacetime, the phenomenon of achromatic birefringence is the only difference when light can be described using geometric optics in the presence of axionic fields. This interaction does not affect redshift, distance estimates, shear, and magnification caused by gravitational lensing.
We present a concise derivation of geometric optics in the presence of axionic fields in a curved spacetime. Whenever light can be described via geometric optics (the eikonal approximation), the only difference to the situation without axionic field is the phenomenon of achromatic birefringence. Consequently, redshift of light and distance estimates based on propagating light rays, as well as shear and magnification due to gravitational lensing are not affected by the interaction of light with an axionic field.
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