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

C. Rubano; P. Scudellaro; E. Piedipalumbo; S. Capozziello

doi:10.1103/PhysRevD.68.123501

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

C. Rubano, P. Scudellaro, E. Piedipalumbo, and S. Capozziello

Phys. Rev. D 68, 123501 – Published 3 December 2003

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 Λ-term model at low-medium redshift, exhibits tracking behavior, and does not show eternal acceleration.

Received 25 June 2003

DOI:https://doi.org/10.1103/PhysRevD.68.123501

Authors & Affiliations

C. Rubano, P. Scudellaro^*, and E. Piedipalumbo

Dipartimento di Scienze Fisiche, Università di Napoli, Complesso Universitario di Monte S. Angelo, Via Cintia, Ed. N, I-80126 Napoli, Italy
Istituto Nazionale di Fisica Nucleare, Sez. Napoli, Complesso Universitario di Monte Sant’Angelo, Via Cintia, Ed. G, I-80126 Napoli, Italy

S. Capozziello

Dipartimento di Fisica “E.R. Caianiello” – Univ. di Salerno and Istituto Nazionale di Fisica Nucleare, Sez. Napoli, Complesso Universitario di Monte Sant’Angelo, Via Cintia, Ed. G, I-80126 Napoli, Italy

^*Email address: scud@na.infn.it

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Vol. 68, Iss. 12 — 15 December 2003

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Physical Review D

covering particles, fields, gravitation, and cosmology