No "big trips" for the universe

Details No "big trips" for the universe No "big trips" for the universe

2007-02-27

arxiv.org/abs/gr-qc/0702143v1

Phys.Lett.B647:309-312,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, latex, to appear in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2007.02.048

It has been claimed in several papers that a phantom energy-dominated
universe can undergo a ``big trip'', i.e., tunneling through a wormhole that
grows faster than the cosmic substratum due to the accretion of phantom energy,
and will reappear on the other mouth of the wormhole. We show that such claims
are unfounded and contradict the Einstein equations.

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