2026-04-13T06:35:02Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/123772025-12-04T20:48:23Zcom_2072_1057col_2072_478822col_2072_478917

00925njm 22002777a 4500 dc Garriga Torres, Jaume author Linde, A. D. author Vilenkin, A. (Alexander) author 2010-05-06T09:31:00Z 2010-05-06T09:31:00Z 2004 We explore the possibility that the dark energy is due to a potential of a scalar field and that the magnitude and the slope of this potential in our part of the Universe are largely determined by anthropic selection effects. We find that, in some models, the most probable values of the slope are very small, implying that the dark energy density stays constant to very high accuracy throughout cosmological evolution. In other models, however, the most probable values of the slope are such that the slow roll condition is only marginally satisfied, leading to a recollapse of the local universe on a time scale comparable to the lifetime of the Sun. In the latter case, the effective equation of state varies appreciably with the redshift, leading to a number of testable predictions. Energia fosca (Astronomia) Equacions d'estat Principi antròpic Dark energy (Astronomy) Anthropic principle Equations of state Dark energy equation of state and anthropic selection