Spin Hall effects in the sky

Abstract

In many areas of physics, the propagation of wave packets carrying intrinsic angular momentum is generally influenced by spin-orbit interactions. This is the main mechanism behind spin Hall effects, which result in wave packets following spin-dependent trajectories. Spin Hall effects have been observed in several experiments for electrons in condensed matter systems and for light propagating in inhomogeneous optical media. Similar effects have also been predicted for wave packets propagating in inhomogeneous gravitational fields. We give a brief introduction to gravitational spin Hall effects, emphasizing the analogies with the spin Hall effect of light in optics. Furthermore, we review the most promising astrophysical avenues that could lead to experimental observations of the gravitational spin Hall effect.

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Cited by in corpus (12)

• Probing general relativistic spin-orbit coupling with gravitational waves from hierarchical triple systems
• Spin wave optics for gravitational waves lensed by a Kerr black hole
• Weyl geometric effects on the propagation of light in gravitational fields
• On spin optics for gravitational waves lensed by a rotating object
• Gravitational wave memory and its effects on particles and fields
• Conserved quantities and integrability for massless spinning particles in general relativity
• Gravity-induced birefringence in spherically symmetric spacetimes
• Gravitational orbital Hall effect of vortex light in Lense-Thirring metric
• The motion of twisted particles in a stellar gravitational field
• Ray Tracing Through Absorbing Dielectric Media in the Schwarzschild Spacetime
• Quantum geometric tensors from sub-bundle geometry
• Hidden Momentum and the Absence of the Gravitational Spin Hall Effect in a Uniform Field