2 papers
gr-qc2025
Physical black holes: spacetime and matter near trapping surfaces
Swayamsiddha Maharana, Rama Vadapalli
Within a semiclassical framework, we investigate spherically symmetric solutions of the Einstein equations that (i) develop a trapped region within a finite time as measured by dis…
gr-qc2025
Gravity-induced birefringence in spherically symmetric spacetimes
Sebastian Murk, Daniel R. Terno, Rama Vadapalli
Geometric optics effectively describes the propagation of electromagnetic waves when the wavelength is much smaller than the characteristic length scale of the medium, making wave…