From Now to Timelike Infinity on a Finite Grid

TL;DR

This paper employs the conformal approach in numerical relativity to simulate hyperboloidal gravitational wave data on a finite grid, successfully covering the entire future evolution including null and timelike infinity.

Contribution

It introduces a method to evolve gravitational wave data on a finite grid that encompasses the entire future spacetime, including null and timelike infinity, without symmetry assumptions.

Findings

Complete future evolution of gravitational waves on a finite grid

Coverage of null and timelike infinity in simulations

No symmetry assumptions required

Abstract

We use the conformal approach to numerical relativity to evolve hyperboloidal gravitational wave data without any symmetry assumptions. Although our grid is finite in space and time, we cover the whole future of the initial data in our calculation, including future null and future timelike infinity.