Traversable wormholes: minimum violation of null energy condition revisited

Details Traversable wormholes: minimum violation of null energy condition revisited Traversable wormholes: minimum violation of null energy condition revisited

2007-07-10

arxiv.org/abs/0707.1487v1

Phys.Rev.D76:044017,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages. To appear in PRD

Scientific paper

10.1103/PhysRevD.76.044017

It was argued in literature that traversable wormholes can exist with
arbitrarily small violation of null energy conditions. We show that if the
amount of exotic material near the wormhole throat tends to zero, either this
leads to a horn instead of a wormhole or the throat approaches the horizon in
such a way that infnitely large stresses develop on the throat.

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