Traversable wormholes with arbitrarily small energy condition violations
General Relativity and Quantum Cosmology
2011-07-18 v2
Abstract
Traversable wormholes necessarily require violations of the averaged null energy condition; this being the definition of ``exotic matter''. However, the theorems which guarantee the energy condition violation are remarkably silent when it comes to making quantitative statements regarding the ``total amount'' of energy condition violating matter in the spacetime. We develop a suitable measure for quantifying this notion, and demonstrate the existence of spacetime geometries containing traversable wormholes that are supported by arbitrarily small quantities of ``exotic matter''.
Keywords
Cite
@article{arxiv.gr-qc/0301003,
title = {Traversable wormholes with arbitrarily small energy condition violations},
author = {Matt Visser and Sayan Kar and Naresh Dadhich},
journal= {arXiv preprint arXiv:gr-qc/0301003},
year = {2011}
}
Comments
4 pages, revtex4; V2: discussion refined and strengthened in view of referee comments, no changes in physics conclusions. To appear in Physical Review Letters