11 papers
Distinguishing Dymnikova and Schwarzschild Black Holes through Gravitational Lensing with EFT-Corrected Photon Propagation
Takamasa Kanai
We investigate whether a Dymnikova regular black hole can be observationally distinguished from a Schwarzschild black hole through strong gravitational lensing, taking into account…
Gravitational Lensing of Hayward Black Holes with EFT-Corrected Photon Propagation
Takamasa Kanai
We investigate whether a Hayward regular black hole can be observationally distinguished from a Schwarzschild black hole through strong gravitational lensing when effective field t…
EFT Corrections to Photon Propagation and Gravitational Lensing in an Ellis-Bronnikov Wormhole
Takamasa Kanai
We investigate strong gravitational lensing by an Ellis-Bronnikov (EB) wormhole in the presence of effective field theory (EFT) corrections to photon propagation. We derive the mod…
Analytical Study of Deflection Angle and Time Delay in Kerr Spacetime with Modified Propagation
Takamasa Kanai
We investigate gravitational lensing in Kerr spacetime in the presence of a modified photon propagation law arising from higher-curvature effective field theory corrections. Adopti…
Polarization-Dependent Photon Propagation, Quasinormal Modes, and Gravitational Lensing in Higher-Curvature Effective Theories
Takamasa Kanai
We investigate the impact of higher-curvature corrections on photon propagation within an effective field theory framework and explore their observational consequences in strong gr…
Probing Effective Field Theory Corrections with Quasinormal Modes and Gravitational Lensing in Reissner-Nordström Black Holes
Takamasa Kanai
Effective field theory (EFT) provides a systematic framework for parametrizing possible higher-energy corrections to general relativity through higher-curvature interactions. In th…