Holographic dark energy in a cyclic universe

Abstract

In 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.

13 pages; typos corrected, version to appear in Eur. Phys. J. C

References in corpus (9)

• Cosmological Evolution of a Quintom Model of Dark Energy
• Constraints on Holographic Dark Energy from Latest Supernovae, Galaxy Clustering, and Cosmic Microwave Background Anisotropy Observations
• A String-Inspired Quintom Model Of Dark Energy
• Holographic tachyon model
• Age Problem in the Holographic Dark Energy Model
• Inflationary universe in loop quantum cosmology
• On the Onset of Inflation in Loop Quantum Cosmology
• Exploring holographic dark energy model with Sandage-Loeb test
• Comment on ``Can Black Holes be Torn Up by a Phantom in Cyclic Cosmology?" by X. Zhang. arXiv:0708.1408 [gr-qc]

Cited by in corpus (3)

• Possible theoretical limits on holographic quintessence from weak gravity conjecture
• Cyclic Universes from General Collisionless Braneworld Models
• Holographic Cosmological Constant and Dark Energy