Noncommutative cosmological models coupled to a perfect fluid and a cosmological constant

Details Noncommutative cosmological models coupled to a perfect fluid and a cosmological constant Noncommutative cosmological models coupled to a perfect fluid and a cosmological constant

2011-11-23

arxiv.org/abs/1111.5376v1

Physics

High Energy Physics

High Energy Physics - Theory

27 pages. 7 figures. JHEP style.arXiv admin note: substantial text overlap with arXiv:1104.4815

Scientific paper

In this work we carry out a noncommutative analysis of several Friedmann-Robert-Walker models, coupled to different types of perfect fluids and in the presence of a cosmological constant. The classical field equations are modified, by the introduction of a shift operator, in order to introduce noncommutativity in these models. We notice that the noncommutative versions of these models show several relevant differences with respect to the correspondent commutative ones.

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