https://doi.org/10.1140/epjc/s10052-025-14086-0
Regular Article - Theoretical Physics
Gravitational Faraday holonomy
Department of Physics, Colorado School of Mines, 80401, Golden, USA
Received:
14
February
2025
Accepted:
14
March
2025
Published online:
2
April
2025
Closed optical trajectories in Kerr spacetime are engineered to exhibit a marked lack of symmetry. The eccentricity manifests as a holonomy in gravitational Faraday rotation that can be made arbitrarily large by radial translation of the common location of source and receiver. All trajectories are non-equatorial and include a passage through the equatorial plane at the radial turning point, where the trajectory and pseudo-magnetic field are well-aligned. This, combined with path asymmetry, results in a large gravitational Faraday holonomy that lends itself to experimental measurement. Trajectories that start further away from the singularity pass more closely to the ergosphere, thus transiting a more distorted region of spacetime with concomitant amplification of gravitational Coriolis force.
© The Author(s) 2025
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