4 papers
Decay of solutions of the wave equation in cosmological spacetimes -- a numerical analysis
Flavio Rossetti, Alex Vañó-Viñuales
We numerically evolve spherically symmetric solutions to the linear wave equation on some expanding Friedmann-Lemaître-Robertson-Walker (FLRW) spacetimes and study the respective…
Charged Scalar Field at Future Null Infinity via Nonlinear Hyperboloidal Evolution
João D. Ãlvares, Alex Vañó-Viñuales
Quasinormal modes and power-law late-time decay tails of a charged scalar field on a charged black hole have been considered in the literature, and here we use the hyperboloidal fo…
Twist and higher modes of a complex scalar field at the threshold of collapse
Krinio Marouda, Daniela Cors, Hannes R. Rüter +2
We investigate the threshold of collapse of a massless complex scalar field in axisymmetric spacetimes under the ansatz of Choptuik et al. 2004, in which a symmetry depending on th…
Free Hyperboloidal Evolution of the Einstein-Maxwell-Klein-Gordon System
João D. Ãlvares, Alex Vaño-Viñuales
We present simulations of the Einstein-Maxwell-Klein-Gordon system on compactified hyperboloidal slices. To the best of our knowledge, this is the first time that this setup is evo…