GRTresna: An open-source code to solve the initial data constraints in numerical relativity
Josu C. Aurrekoetxea, Sam E. Brady, Llibert Arest\'e-Sal\'o, Jamie, Bamber, Liina Chung-Jukko, Katy Clough, Eloy de Jong, Matthew Elley, Pau, Figueras, Thomas Helfer, Eugene A. Lim, Miren Radia, Areef Waeming, Zipeng, Wang
TL;DR
GRTresna is an open-source multigrid solver that addresses initial data constraints in numerical relativity, especially for black hole and cosmological scenarios, facilitating more accurate simulations.
Contribution
It introduces a specialized multigrid solver tailored for initial data constraints in complex numerical relativity scenarios, expanding computational tools in the field.
Findings
Successfully solves initial data constraints for black hole spacetimes
Handles inhomogeneous cosmological initial data effectively
Enhances the accuracy of numerical relativity simulations
Abstract
GRTresna is a multigrid solver designed to solve the constraint equations for the initial data required in numerical relativity simulations. In particular it is focussed on scenarios with fundamental fields around black holes and inhomogeneous cosmological spacetimes. The following overview has been prepared as part of the submission of the code to the Journal of Open Source Software. The code is based on the formalism in Aurrekoetxea, Clough \& Lim arXiv:2207.03125 and can be found at https://github.com/GRTLCollaboration/GRTresna
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Taxonomy
TopicsGeophysics and Gravity Measurements · Relativity and Gravitational Theory · Pulsars and Gravitational Waves Research