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arxiv: gr-qc/0701056 · v1 · pith:OTC6IRT3new · submitted 2007-01-10 · 🌀 gr-qc · astro-ph· hep-th

Big-Rip, Sudden Future, and other exotic singularities in the universe

classification 🌀 gr-qc astro-phhep-th
keywords singularitiesfuturesuddenbig-ripdiscussexotictypeuniverse
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We discuss exotic singularities in the evolution of the universe motivated by the progress of observations in cosmology. Among them there are: Big-Rip (BR), Sudden Future Singularities (SFS), Generalized Sudden Future Singularities (GSFS), Finite Density Singularities (FD), type III, and type IV singularities. We relate some of these singularities with higher-order characteristics of expansion such as jerk and snap. We also discuss the behaviour of pointlike objects and classical strings on the approach to these singularities.

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