3 papers
gr-qc2020
Scalar and vector tail radiation from the interior of the lightcone
Craig J. Copi, Klaountia Pasmatsiou, Glenn D. Starkman
In a generic spacetime a massless field propagates not just on the surface of the forward lightcone of a source, but in its interior. This inside-the-lightcone "tail radiation" is…
gr-qc2019
Finite-Size Effects On The Self-Force
Yi-Zen Chu, Klaountia Pasmatsiou, Glenn D. Starkman
Electromagnetic and linear gravitational radiation do not solely propagate on the null cone in 3+1 dimensions in curved spacetimes, contrary to their well-known behavior in flat sp…
hep-th2019
Tunneling Between Schwarzschild-de Sitter Vacua
Klaountia Pasmatsiou
We extend the study of the effect of static primordial black holes on vacuum decay. In particular, we compare the tunneling rates between vacua of different values of the cosmologi…