Cylindrical thin-shell wormholes and energy conditions

Details Cylindrical thin-shell wormholes and energy conditions Cylindrical thin-shell wormholes and energy conditions

2012-03-16

arxiv.org/abs/1203.3761v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages; slightly improved version of the article accepted in Int. J. Mod. Phys. D

Scientific paper

10.1142/S0218271812500150

We prove the impossibility of cylindrical thin-shell wormholes supported by matter satisfying the energy conditions everywhere, under reasonable assumptions about the asymptotic behaviour of the - in general different - metrics at each side of the throat. In particular, we reproduce for singular sources previous results corresponding to flat and conical asymptotics, and extend them to a more general asymptotic behaviour. Besides, we establish necessary conditions for the possibility of non exotic cylindrical thin-shell wormholes.

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