1 citations · 1 across the 1 of their papers we have counts for
5 papers
A numerical approach to particle creation in accelerating toy models
Pedro Duarte Baptista, Alex Vañó-Viñuales, AdrÃan del RÃo
The formation of black holes by the gravitational collapse of stars is known to spontaneously excite particle pairs out of the quantum vacuum. For the canonical vacuum state at pas…
Hyperboloidal neutron star and black hole initial data in spherical symmetry
Alex Vañó-Viñuales
The focus of this work is on the construction of initial data including a neutron star on a hyperboloidal slice. As simplest scenario for this first step, spherical symmetry is con…
Topical Collection-Hyperboloidal Foliations in the Era of Gravitational-Wave Astronomy: From Mathematical Relativity to Astrophysics
David Hilditch, Rodrigo Panosso Macedo, Alex Vañó-Viñuales +1
Editorial introducing the GRG Topical Collection "Hyperboloidal foliations in the era of gravitational-wave astronomy," on hyperboloidal slices. The collection includes contributio…
Hyperboloidal approach for linear and non-linear wave equations in FLRW spacetimes
Flavio Rossetti, Alex Vañó-Viñuales
In this numerical work, we deal with two distinct problems concerning the propagation of waves in cosmological backgrounds. In both cases, we employ a spacetime foliation given in…
Numerical evolutions of the linearised conformal Einstein field equations in the inversion-Minkowski spacetime
Christian Peterson, Edgar GasperÃn, Alex Vañó-Viñuales
Numerical evolutions of a system of equations close to null infinity in the geometric background of the inversion-Minkowski spacetime are performed. The evolved equations correspon…