Relativistic fluids in cosmological spacetimes

Autor(en)

David Fajman, Maximilian Ofner, Zoe Wyatt

Abstrakt

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(en)

Gravitationsphysik

Externe Organisation(en)

University of Cambridge

Journal

Classical and Quantum Gravity

Band

41

Anzahl der Seiten

20

ISSN

0264-9381

DOI

https://doi.org/10.1088/1361-6382/ad84ad

Publikationsdatum

12-2024

Peer-reviewed

Ja

ÖFOS 2012

103028 Relativitätstheorie, 101006 Differentialgeometrie

Schlagwörter

ASJC Scopus Sachgebiete

Physics and Astronomy (miscellaneous)

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/cd502d7d-cc14-4329-88ee-6f2dd0af037d