On Non-Commutative Correction of the Gödel-type Metric
arXiv:1503.01391 · doi:10.1007/s10714-015-1944-y
Abstract
In this paper, we will study non-commutative corrections in the metric tensor for the Gödel-type universe, a model that has as its main characteristic the possibility of violation of causality, allowing therefore time travel. We also find that the critical radius in such a model, which eventually will determine the time travel possibility, is modified due to the non commutativity of spatial coordinates.
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