Holographic dark energy in a cyclic universe

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dc.creatorZhang, Jingfei
dc.creatorZhang, Xin
dc.creatorLiu, Hongya
dc.date2007-08-23
dc.date2007-09-19
dc.date.accessioned2026-07-07T11:18:50Z
dc.date.available2026-07-07T11:18:50Z
dc.descriptionIn this paper we study the cosmological evolution of the holographic dark energy in a cyclic universe, generalizing the model of holographic dark energy proposed by Li. The holographic dark energy with $c<1$ can realize a quintom behavior; namely, it evolves from a quintessence-like component to a phantom-like one. The holographic phantom energy density grows rapidly and dominates the late-time expanding phase, helping realize a cyclic universe scenario in which the high energy regime is modified by the effects of quantum gravity, causing a turnaround (and a bounce) of the universe. The dynamical evolution of holographic dark energy in the regimes of low energy and high energy is governed by two differential equations, respectively. It is of importance to link the two regimes for this scenario. We propose a link condition giving rise to a complete picture of holographic evolution of a cyclic universe.
dc.description13 pages; typos corrected, version to appear in Eur. Phys. J. C
dc.identifierhttps://arxiv.org/abs/0708.3121
dc.identifierhttp://arxiv.org/abs/0708.3121
dc.identifierEur.Phys.J.C52:693-699,2007
dc.identifierdoi:10.1140/epjc/s10052-007-0408-2
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193480
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleHolographic dark energy in a cyclic universe
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