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On Noncommutative Minisuperspace and the Friedmann equations

In this paper we present 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 noncommutitive parameter. Finally we conclude that if we want a noncommutative minisuperspace with a constant noncommutative parameter as viable phenomenological model, the noncommuative parameter is very small.

preprint2008arXivOpen access
W. GuzmánM. SabidoJ. Socorro
astro-phgr-qchep-th
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W. GuzmánM. SabidoJ. Socorro

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