241 citations · 779 across the 41 of their papers we have counts for
41 papers
Conductors and superconductors in stationary spacetimes: generalized Schiff-Barnhill and Meissner effects
F. Masghatian, M. Nouri-Zonoz, H. Sadegh
Previous studies on conductors and superconductors in curved spacetimes, and the gravitationally-induced electric and magnetic fields in them, are mostly restricted to the limit of…
Electrodynamics in curved spacetime: Gravitationally-induced constitutive equations and the spacetime index of refraction
F. Masghatian, M. Esfandiar, M. Nouri-Zonoz
Previous studies on spacetime index of refraction are mostly restricted to the static spacetimes. In this study we fill this gap by introducing the refractive index for full statio…
Photon rings in the metamaterial analog of a gravitomagnetic monopole
A. Parvizi, H. Forghani-Ramandy, E. Rahmani +1
After studying null geodesics in the equatorial plane in NUT spacetime, we show that there are unstable photon rings in this plane. Next we transform the metric of this plane to th…
Embedding diagrams in stationary spacetimes
H. Sadegh, E. Kiani, M. Nouri-Zonoz
We find the spatial and dynamic embedding diagrams in some stationary spacetimes. The spatial embeddings include the NUT, pure NUT and Kerr spacetimes. In the case of pure NUT spac…
Metamaterial analog of a black hole shadow: An exact ray-tracing simulation based on the spacetime index of refraction
M. Nouri-Zonoz, A. Parvizi, H. Forghani
In this letter first we show that the equation of null geodesics in spherically symmetric spacetimes in isotropic coordinates is identical to the equation of light ray trajectories…
Static and stationary dark fluid universes: A gravitoelectromagnetic perspective
M. Nouri-Zonoz, A. Nouri-Zonoz
We introduce a physical characterization of the static and stationary perfect fluid solutions of the Einstein field equations with a single or 2-component perfect fluid sources, ac…