On noncommutative minisuperspace and the Friedmann equations |
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| Authors: | W. Guzmá n,M. Sabido,J. Socorro |
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| Affiliation: | 1. Centro Brasileiro de Pesquisas Fisicas, Rua Dr. Xavier Sigaud, 150 Urca, CEP 22290-180, Rio de Janeiro, RJ, Brazil;2. Departamento de Física, DCI-Campus León, Universidad de Guanajuato, A.P. E-143, C.P. 37150, Guanajuato, Mexico |
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| Abstract: | In this Letter we present a noncommutative version of scalar field cosmology. We find the noncommutative Friedmann equations as well as the noncommutative Klein–Gordon equation, interestingly the noncommutative contributions are only present up to second order in the noncommutative parameter. Finally we conclude that if we want a noncommutative minisuperspace with a constant noncommutative parameter as viable phenomenological model, the noncommutative parameter has to be very small. |
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| Keywords: | Cosmology Noncommutativity Minisuperspace models |
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