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Gravitational Faraday and spin-Hall effects of light: Local description

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Shoom,  Andrey A.
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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2404.15934.pdf
(Preprint), 195KB

PhysRevD.110.024029.pdf
(Publisher version), 205KB

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Citation

Shoom, A. A. (2024). Gravitational Faraday and spin-Hall effects of light: Local description. Physical Review D, 110(2): 024029. doi:10.1103/PhysRevD.110.024029.


Cite as: https://hdl.handle.net/21.11116/0000-000F-B2CE-0
Abstract
A gravitational field can cause a rotation of the polarisation plane of
light. This phenomenon is known as the gravitational Faraday effect. It arises
due to different spin-orbit interaction of left- and right-handed circularly
polarised components of light. Such an interaction also causes transverse
displacement in the light trajectory, in opposite directions for each
component. This phenomenon is known as the gravitational spin-Hall effect of
light. We study these effects in a local inertial frame in arbitrary vacuum
space-time and show that they are observer dependent and arise due to
interaction of light polarisation with a local gravitomagnetic field measured
by observer. Thus, to address the effects to a gravitational field alone, one
has to consider zero angular momentum observers.