94 citations · 310 across the 18 of their papers we have counts for
15 papers · 1 filter
Analytic solutions for the gravitational spin Hall equations and black hole shadows
Marius A. Oancea
In general relativity, the geometric optics approximation describes the propagation of high-frequency electromagnetic waves along null geodesics. Beyond this approximation, localiz…
Conserved quantities and integrability for massless spinning particles in general relativity
Lars Andersson, Finnian Gray, Marius A. Oancea
In general relativity, the dynamics of spinning particles is governed by the Mathisson-Papapetrou-Dixon equations, which are most commonly applied to massive bodies, but the framew…
Gravitational wave memory and its effects on particles and fields
Abraham I. Harte, Thomas B. Mieling, Marius A. Oancea +1
Gravitational wave memory is said to arise when a gravitational wave burst produces changes in a physical system that persist even after that wave has passed. This paper analyzes g…
Probing general relativistic spin-orbit coupling with gravitational waves from hierarchical triple systems
Marius A. Oancea, Richard Stiskalek, Miguel Zumalacárregui
Wave packets propagating in inhomogeneous media experience a coupling between internal and external degrees of freedom and, as a consequence, follow spin-dependent trajectories. Th…
Weyl geometric effects on the propagation of light in gravitational fields
Marius A. Oancea, Tiberiu Harko
We consider the effects of Weyl geometry on the propagation of electromagnetic waves and on the gravitational spin Hall effect of light. It is usually assumed that in vacuum the el…
Spin Hall effects in the sky
Lars Andersson, Marius A. Oancea
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…
Semiclassical analysis of Dirac fields on curved spacetime
Marius A. Oancea, Achal Kumar
We present a semiclassical analysis for Dirac fields on an arbitrary spacetime background and in the presence of a fixed electromagnetic field. Our approach is based on a Wentzel-K…
Frequency- and polarization-dependent lensing of gravitational waves in strong gravitational fields
Marius A. Oancea, Richard Stiskalek, Miguel Zumalacárregui
The propagation of gravitational waves can be described in terms of null geodesics by using the geometrical optics approximation. However, at large but finite frequencies the propa…
Spin Hall effects and the localization of massless spinning particles
Abraham I. Harte, Marius A. Oancea
The spin Hall effects of light represent a diverse class of polarization-dependent physical phenomena involving the dynamics of electromagnetic wave packets. In a medium with an in…
Propagation of polarized gravitational waves
Lars Andersson, Jérémie Joudioux, Marius A. Oancea +1
The propagation of high-frequency gravitational waves can be analyzed using the geometrical optics approximation. In the case of large but finite frequencies, the geometrical optic…
Gravitational spin Hall effect of light
Marius A. Oancea, Jérémie Joudioux, I. Y. Dodin +3
The propagation of electromagnetic waves in vacuum is often described within the geometrical optics approximation, which predicts that wave rays follow null geodesics. However, thi…
An overview of the gravitational spin Hall effect
Marius A. Oancea, Claudio F. Paganini, Jérémie Joudioux +1
In General Relativity, the propagation of electromagnetic waves is usually described by the vacuum Maxwell's equations on a fixed curved background. In the limit of infinitely high…
Smoothness of the future and past trapped sets in Kerr-Newman-Taub-NUT spacetimes
Claudio F. Paganini, Marius A. Oancea
We consider the sets of future/past trapped null geodesics in the exterior region of a sub-extremal Kerr-Newman-Taub-NUT spacetime. We show that, from the point of view of any time…
The Fingerprints of Black Holes - Shadows and their Degeneracies
Marc Mars, Claudio F. Paganini, Marius A. Oancea
We show that, away from the axis of symmetry, no continuous degeneration exists between the shadows of observers at any point in the exterior region of any Kerr-Newman black hole s…
Characterization of Null Geodesics on Kerr Spacetimes
Claudio F. Paganini, Blazej Ruba, Marius A. Oancea
We consider null geodesics in the exterior region of a subextremal Kerr spacetime. We show that most well-known fundamental properties of null geodesics can be represented on one p…