Networks of cosmological histories, crossing of the phantom divide line and potentials with cusps

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dc.creatorCannata, Francesco
dc.creatorKamenshchik, Alexander Y.
dc.date2006-03-31
dc.date.accessioned2026-07-07T11:04:25Z
dc.date.available2026-07-07T11:04:25Z
dc.descriptionWe discuss the phenomenon of the smooth dynamical gravity induced crossing of the phantom divide line in a framework of simple cosmological models where it appears to occur rather naturally, provided the potential of the unique scalar field has some kind of cusp. The behavior of cosmological trajectories in the vicinity of the cusp is studied in some detail and a simple mechanical analogy is presented. The phenomenon of certain complementarity between the smoothness of the spacetime geometry and matter equations of motion is elucidated. We introduce a network of cosmological histories and qualitatively describe some of its properties.
dc.identifierhttps://arxiv.org/abs/gr-qc/0603129
dc.identifierhttp://arxiv.org/abs/gr-qc/0603129
dc.identifierInt.J.Mod.Phys.D16:1683-1704,2007
dc.identifierdoi:10.1142/S0218271807010961
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188886
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleNetworks of cosmological histories, crossing of the phantom divide line and potentials with cusps
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