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Holographic principle, cosmological constant and cyclic cosmology

Dipartimento di Matematica e Fisica “Ennio De Giorgi”, Università del Salento and INFN-Lecce, Via Arnesano, Lecce 73100, Italy

E-mail Address: claudio.coriano@le.infn.it

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and

Paul H. Frampton

Dipartimento di Matematica e Fisica “Ennio De Giorgi”, Università del Salento and INFN-Lecce, Via Arnesano, Lecce 73100, Italy

E-mail Address: paul.h.frampton@gmail.com

Corresponding author.

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https://doi.org/10.1142/S0217732319503553Cited by:5 (Source: Crossref)

Abstract

The holographic principle provides a deep insight into quantum gravity and resolves the fine-tuning crisis concerning the cosmological constant. Holographic dark energy introduces new ultraviolet (UV) and infrared (IR) cutoffs into quantum gravity which are necessarily strongly related. The equation of state for dark energy $ω = p / ρ$ is discussed from the holographic point of view. The phantom option of $ω < - 1$ is resurrected, as in an earlier cyclic cosmology. Such a cyclic model can, however, equally use the cosmological constant with $ω = - 1$ .

Keywords:

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