Oscillating dark energy: a possible solution to the problem of eternal acceleration

Abstract

We present a dark energy model with a double exponential potential for a minimally coupled scalar field, which allows general exact integration of the cosmological equations. The solution can perfectly emulate a $\Lambda$-term model at low-medium redshift, exhibits tracking behavior, and does not show eternal acceleration.

15 pages, 7 figures included, to appear in Physical Review D

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Cited by in corpus (15)

• Reconstructing Dark Energy
• Exploring Cosmological Expansion Parametrizations with the Gold SnIa Dataset
• Torsion Cosmology and the Accelerating Universe
• Exponential Potentials for Tracker Fields
• Transient Accelerated Expansion and Double Quintessence
• Dynamical dark energy confronted with multiple CMB missions
• Dynamic Scalar Torsion and an Oscillating Universe
• Energy exchange for homogeneous and isotropic universes with a scalar field coupled to matter
• Coupled quintessence with double exponential potentials
• Testing an oscillatory behavior of dark energy
• Quintessential Maldacena-Maoz Cosmologies
• Spinor model of a perfect fluid and their applications in Bianchi type-I and FRW models
• Negative potentials and collapsing universes
• Scaling attractors for quintessence in flat universe with cosmological term
• Scalar field in cosmology: Potential for isotropization and inflation