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arXiv · 1801.00009

Godel Metrics with Chronology Protection in Horndeski Gravities

Wei-Jian Geng·Shou-Long Li·H. Lu·Hao Wei
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Abstract

Gödel universe, one of the most interesting exact solutions predicted by General Relativity, describes a homogeneous rotating universe containing naked closed time-like curves (CTCs). It was shown that such CTCs are the consequence of the null energy condition in General Relativity. In this paper, we show that the Gödel-type metrics with chronology protection can emerge in Einstein-Horndeski gravity. We construct such exact solutions also in Einstein-Horndeski-Maxwell and Einstein-Horndeski-Proca theories.

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Wei-Jian Geng, Shou-Long Li, H. Lu, Hao Wei. 2018-01-09. Godel Metrics with Chronology Protection in Horndeski Gravities. https://doi.org/10.1016/j.physletb.2018.02.075

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