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Traversable wormholes and time machines in nonminimally coupled curvature-matter f ( R ) theories

2012; American Physical Society; Volume: 85; Issue: 10 Linguagem: Inglês

10.1103/physrevd.85.104050

1550-7998

Orfeu Bertolami, Ricardo Z. Ferreira,

Galaxies: Formation, Evolution, Phenomena

We obtain traversable wormhole and time machine solutions of the field equations of an alternative of gravity with non-minimally curvature-matter coupling. Our solutions exhibit a non-trivial redshift function and allow for matter that satisfy the dominant energy condition.