The long freeze: an asymptotically static universe from holographic dark energy

Autor:	Trivedi, Oem, Scherrer, Robert J.
Rok vydání:	2024
Předmět:	Astrophysics - Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Theory
Druh dokumentu:	Working Paper
Popis:	We show that some holographic dark energy models can lead to a future evolution of the universe in which the scale factor $a$ is asymptotically constant, while $\dot a \rightarrow 0$ and the corresponding energy and pressure densities also vanish. We provide specific examples of such models and general conditions that can lead to an asymptotically static universe, which we have called the ``long freeze." We show that in some cases, such evolution can follow an arbitrarily long exponential expansion essentially identical to the asymptotic evolution of $\Lambda$CDM. Comment: v2, references added, 5 pages with no figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2409.11420 Zobrazit plný text záznamu View this record from Arxiv