37 citations · 104 across the 8 of their papers we have counts for
9 papers
Spherical Evolution of the Generalized Harmonic Gauge Formulation of General Relativity on Compactified Hyperboloidal Slices
Christian Peterson, Shalabh Gautam, Alex Vañó-Viñuales +1
We report on the successful numerical evolution of the compactified hyperboloidal initial value problem in general relativity using generalized harmonic gauge. We work in spherical…
Height-function-based 4D reference metrics for hyperboloidal evolution
Alex Vañó-Viñuales, Tiago Valente
Hyperboloidal slices are spacelike slices that reach future null infinity. Their asymptotic behaviour is different from Cauchy slices, which are traditionally used in numerical rel…
Spherically symmetric black hole spacetimes on hyperboloidal slices
Alex Vañó-Viñuales
Gravitational radiation and some global properties of spacetimes can only be unambiguously measured at future null infinity . This motivates the interest in reaching it within simu…
3D Evolution of a Good-Bad-Ugly-F Model on Compactified Hyperboloidal Slices
Christian Peterson, Shalabh Gautam, Inês Rainho +2
The Good-Bad-Ugly-F model is a system of semi-linear wave equations that mimics the asymptotic form of the Einstein field equations in generalized harmonic gauge with specific cons…
Dynamical descalarization with a jump during black hole merger
Daniela D. Doneva, Alex Vañó-Viñuales, Stoytcho S. Yazadjiev
Black holes in scalar-Gauss-Bonnet gravity are prone to scalarization, that is a spontaneous development of scalar hair for strong enough spacetime curvature while the weak field r…
Summation by Parts and Truncation Error Matching on Hyperboloidal Slices
Shalabh Gautam, Alex Vañó-Viñuales, David Hilditch +1
We examine stability of summation by parts (SBP) numerical schemes that use hyperboloidal slices to include future null infinity in the computational domain. This inclusion serves…
Free hyperboloidal evolution in spherical symmetry
Alex Vañó-Viñuales, Sascha Husa
We address the hyperboloidal initial value problem in the context of Numerical Relativity, motivated by its evolution on hyperboloidal slices: smooth spacelike slices that reach fu…
Free evolution of the hyperboloidal initial value problem in spherical symmetry
Alex Vañó-Viñuales
The hyperboloidal initial value problem is addressed in the context of Numerical Relativity, motivated by its use of hyperboloidal slices - smooth spacelike slices that reach futur…
Unconstrained hyperboloidal evolution of black holes in spherical symmetry with GBSSN and Z4c
Alex Vañó-Viñuales, Sascha Husa
We consider unconstrained evolution schemes for the hyperboloidal initial value problem in numerical relativity as a promising candidate for the optimally efficient numerical treat…