401 citations · 1.7k across the 60 of their papers we have counts for
61 papers
Radiation in the black hole - plasma system: propagation in equatorial plane
Vladimír Balek, Barbora Bezděková, Jiří Bičák
Effect of cold plasma on the form of rays propagating in the equatorial plane of a rotating black hole is investigated. Two kinds of regions in the radius-impact parameter plane al…
Light Deflection in Plasma in the Hartle-Thorne Metric and in Other Axisymmetric Spacetimes with a Quadrupole Moment
Barbora Bezdekova, Jiri Bicak
The light propagation in plasma medium around stationary gravitating objects is studied in the geometrical optics limit. Static metrics with quadrupole moments are considered, howe…
Migrating Carrollian particles on magnetized black hole horizons
Jiri Bicak, David Kubiznak, T. Rick Perche
By considering a misaligned (asymptotically uniform) magnetic field in the background of a rotating black hole, we uncover a possibility for a highly non-trivial motion of Carrolli…
Light propagation in a plasma on an axially symmetric and stationary spacetime: Separability of the Hamilton-Jacobi equation and shadow
Barbora Bezdekova, Volker Perlick, Jiri Bicak
The properties of light rays around compact objects surrounded by a plasma are affected by both strong gravitational fields described by a general-relativistic spacetime and by a d…
Quantum Detection of Conicity
Wan Cong, Jiri Bicak, David Kubiznak +1
We investigate the sensitivity of an Unruh-DeWitt detector to the global features of a deficit angle that are otherwise classically inaccessible. Specifically, we consider a detect…
Quantum Detection of Inertial Frame Dragging
Wan Cong, Jiri Bicak, David Kubiznak +1
A relativistic theory of gravity like general relativity produces phenomena differing fundamentally from Newton's theory. An example, analogous to electromagnetic induction, is gra…