We come back on the dynamical properties of $k$-essential cosmological models and show how the interesting phenomenological features of those models are related to the existence of boundaries in the phase space related to two distinct energy conditions. We also explain how to deal with the branching points where the energy density is either maximal or minimal and uncover the possibility that the arrow of time is reversed.

New dynamical features of pure k-essential cosmologies

Ugo Moschella
;
2022-01-01

Abstract

We come back on the dynamical properties of $k$-essential cosmological models and show how the interesting phenomenological features of those models are related to the existence of boundaries in the phase space related to two distinct energy conditions. We also explain how to deal with the branching points where the energy density is either maximal or minimal and uncover the possibility that the arrow of time is reversed.
2022
2022
http://arxiv.org/abs/2103.10473v1
General Relativity and Quantum Cosmology; General Relativity and Quantum Cosmology; High Energy Physics - Theory
Moschella, Ugo; Novello, Mario
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11383/2133984
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