84 citations · 85 across the 3 of their papers we have counts for
3 papers
gr-qc2023★ 1 cited
Theory-agnostic parametrization of wormhole spacetimes
Thomas D. Pappas
We present a generalization of the Rezzolla-Zhidenko theory-agnostic parametrization of black-hole spacetimes to accommodate spherically-symmetric Lorentzian, traversable wormholes…
gr-qc2021
Scale-invariance, dynamically induced Planck scale and inflation in the Palatini formulation
Ioannis D. Gialamas, Alexandros Karam, Thomas D. Pappas +2
We present two scale invariant models of inflation in which the addition of quadratic in curvature terms in the usual Einstein-Hilbert action, in the context of Palatini formulatio…
hep-th2014★ 84 cited
Greybody Factors for Scalar Fields emitted by a Higher-Dimensional Schwarzschild-de-Sitter Black-Hole
Panagiota Kanti, Thomas Pappas, Nikolaos Pappas
In this work, we consider the propagation of scalar particles in a higher-dimensional Schwarzschild-de-Sitter black-hole spacetime, both on the brane and in the bulk. Our analysis…