Phantom cosmologies and fermions

Details Phantom cosmologies and fermions Phantom cosmologies and fermions

2007-07-30

arxiv.org/abs/0707.4455v2

Class.Quant.Grav.25:085007,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, version which was accepted for publication in CQG

Scientific paper

10.1088/0264-9381/25/8/085007

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.

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