Relativistic fluids in cosmological spacetimes
- Author(s)
- David Fajman, Maximilian Ofner, Zoe Wyatt
- Abstract
We review the status of mathematical research on the dynamical properties of relativistic fluids in cosmological spacetimes-both, in the presence of gravitational backreaction as well as the evolution on fixed cosmological backgrounds. We focus in particular on the phenomenon of fluid stabilization, which describes the taming effect of spacetime expansion on the fluid. While fluids are in general known to form shocks from regular initial data, spacetime expansion has been found to suppress this behaviour. During the last decade, various rigorous results on this problem have been put forward. We review these results, the mathematical methods involved and provide an outlook on open questions.
- Organisation(s)
- Gravitational Physics
- External organisation(s)
- University of Cambridge
- Journal
- Classical and Quantum Gravity
- Volume
- 41
- No. of pages
- 20
- ISSN
- 0264-9381
- DOI
- https://doi.org/10.1088/1361-6382/ad84ad
- Publication date
- 12-2024
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103028 Theory of relativity, 101006 Differential geometry
- Keywords
- ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/relativistic-fluids-in-cosmological-spacetimes(cd502d7d-cc14-4329-88ee-6f2dd0af037d).html