More on wormholes supported by small amounts of exotic matter

Details More on wormholes supported by small amounts of exotic matter More on wormholes supported by small amounts of exotic matter

2005-12-05

arxiv.org/abs/gr-qc/0512027v2

Phys.Rev. D73 (2006) 084014

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages AMSTeX; 3 figures added

Scientific paper

10.1103/PhysRevD.73.084014

Recent papers by Fewster and Roman have emphasized that wormholes supported by arbitrarily small amounts of exotic matter will have to be incredibly fine-tuned if they are to be traversable. This paper discusses a wormhole model that strikes a balance between two conflicting requirements, reducing the amount of exotic matter and fine-tuning the metric coefficients, ultimately resulting in an engineering challenge: one requirement can only be met at the expense of the other. The wormhole model is macroscopic and satisfies various traversability criteria.

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