Gravitational orbital Hall effect of vortex light in Lense-Thirring metric
arXiv:2407.06553 · doi:10.1140/epjc/s10052-024-13409-x
Abstract
Vortex light, characterized by an intrinsic orbital angular momentum aligned with its propagation direction, is described through vortex electromagnetic waves. Similar to the gravitational spin Hall effect (SHE), vortex light is expected to exhibit intrinsic orbital angular momentum dependent trajectories and deviations from the null geodesic plane when propagating through a gravitational field, a phenomenon termed the gravitational orbital Hall effect (OHE). In this work, we model the vortex light as vortex Laguerre-Gaussian electromagnetic wave packets and analyze its motion by solving covariant Maxwell equations within the Lense-Thirring metric. Our findings reveal that the trajectory of vortex light with an intrinsic orbital angular momentum deviates from the null geodesic in two ways. It deviates both perpendicular to, and within, the null geodesic plane. This behavior contrasts with the gravitational SHE, where spin-polarized light primarily deviates perpendicular to the null geodesic plane. Moreover, the relationship between the deviation and intrinsic orbital angular momentum differs significantly from that between the deviation and spin. These results suggest a unique interaction between intrinsic orbital angular momentum and gravity, distinct from the spin-gravity coupling, indicating that the gravitational OHE of light might not be precisely predicted by merely substituting spin with intrinsic orbital angular momentum in the gravitational SHE of light.
References in corpus (17)
- Geometrodynamics of Spinning Light
- Observation of the orbital Hall effect in a light metal Ti
- Twisting of light around rotating black holes
- Geometrical Optics of Beams with Vortices: Berry Phase and Orbital Angular Momentum Hall Effect
- Light fan driven by relativistic laser pulse
- Spin dynamics in gravitational fields of rotating bodies and the equivalence principle
- Motion of spinning test bodies in Kerr spacetime
- Photonic spin Hall effect in metasurfaces with rotational symmetry-breaking
- Spin and orbital Hall effects for diffracting optical beams in gradient-index media
- Kerr spacetime geometric optics for vortex beams
- Massless polarized particle and Faraday rotation of light in the Schwarzschild spacetime
- Spin Hall effects in the sky
- Spinning particle orbits around a black hole in an expanding background
- Weyl geometric effects on the propagation of light in gravitational fields
- Polarization transport in optical fibers beyond Rytov's law
- Threshold effects in high-energy vortex state collisions
- The motion of twisted particles in a stellar gravitational field