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.
Oscillating dark energy: A possible solution to the problem of eternal acceleration / Rubano, Claudio; Scudellaro, Paolo; Piedipalumbo, Ester; Capozziello, Salvatore. - In: PHYSICAL REVIEW D. - ISSN 0556-2821. - STAMPA. - 68:(2003), pp. 123501-1-123501-5.
Oscillating dark energy: A possible solution to the problem of eternal acceleration
RUBANO, CLAUDIO;SCUDELLARO, PAOLO;PIEDIPALUMBO, ESTER;CAPOZZIELLO, SALVATORE
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 Lambda-term model at low-medium redshift, exhibits tracking behavior, and does not show eternal acceleration.File in questo prodotto:
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