Phantom cosmologies and fermions

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Form invariance transformations can be used for constructing phantom cosmologies starting with conventional cosmological models. In this work we reconsider the scalar field case and extend the discussion to fermionic fields, where the "phantomization" process exhibits a new class of possible accelerated regimes. As an application we analyze the cosmological constant group for a fermionic seed fluid.
5 pages, version which was accepted for publication in CQG

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General Relativity and Quantum Cosmology

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http://salesiana.dossiersoluciones.com/handle/123456789/193292

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0707.4455
 http://arxiv.org/abs/0707.4455
 Class.Quant.Grav.25:085007,2008
 doi:10.1088/0264-9381/25/8/085007

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arXiv