Cosmological Constant and Noncommutativity: A Newtonian point of view
classification
✦ hep-th
keywords
cosmologicalconstantmodelnewtoniannoncommutativeparticletrajectoriesappear
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We study a Newtonian cosmological model in the context of a noncommutative space. It is shown that the trajectories of a test particle undergo modifications such that it no longer satisfies the cosmological principle. For the case of a positive cosmological constant, spiral trajectories are obtained and corrections to the Hubble constant appear. It is also shown that, in the limit of a strong noncommutative parameter, the model is closely related to a particle in a G\"odel-type metric.
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