Cosmology using numerical relativity
Josu C. Aurrekoetxea, Katy Clough, Eugene A. Lim
TL;DR
This review discusses the application of numerical relativity to study complex, dynamical cosmological phenomena across different epochs, highlighting current advancements and future research directions.
Contribution
It provides a comprehensive overview of numerical relativity techniques applied to cosmology, integrating recent developments and identifying promising future research avenues.
Findings
Numerical relativity enables detailed simulations of early universe dynamics.
Current models successfully simulate late-time cosmological evolution.
The review highlights gaps and potential for future advancements in the field.
Abstract
This review is an up-to-date account of the use of numerical relativity to study dynamical, strong-gravity environments in a cosmological context. First, we provide a gentle introduction into the use of numerical relativity in solving cosmological spacetimes, aimed at both cosmologists and numerical relativists. Second, we survey the present body of work, focusing on general relativistic simulations, organised according to the cosmological history -- from cosmogenesis, through the early hot Big Bang, to the late-time evolution of universe. We discuss the present state-of-the-art, and suggest directions in which future work can be fruitfully pursued.
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