2 papers
gr-qc2026
Antipodal constraints on transient Hawking radiation in a conformal channel
M. Baran Ökten, Aslı S. Turan
Hawking radiation away from stationarity is governed, at the ray tracing level, by the retarded time evolution of the null mapping. We consider an extracted massless conformal chan…
gr-qc2025
Achromatic, spin-odd Kerr EVPA as a null Frenet-Serret torsion integral on the photon ring
M. Baran Ãkten, M. Baran Ökten
We compute the achromatic gravitational imprint that Kerr spacetime leaves on linear polarization at the photon ring. Recasting parallel transport in a null Frenet--Serret frame yi…