Traversable wormholes: the Roman ring

Details Traversable wormholes: the Roman ring Traversable wormholes: the Roman ring

1997-02-21

arxiv.org/abs/gr-qc/9702043v1

Phys.Rev. D55 (1997) 5212-5214

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages; ReV_TeX 3.0 in twocolumn mode; two line drawings using the LaTeX picture environment; Accepted for publication in Phy

Scientific paper

10.1103/PhysRevD.55.5212

In this brief report I introduce a yet another class of geometries for which semi-classical chronology protection theorems are of dubious physical reliability. I consider a ``Roman ring'' of traversable wormholes, wherein a number of wormholes are arranged in a ring in such a manner that no subset of wormholes is near to chronology violation, though the combined system can be arbitrarily close to chronology violation. I show that (with enough wormholes in the ring) the gravitational vacuum polarization (the expectation value of the quantum stress-energy tensor) can be made arbitrarily small. In particular the back-reaction can be kept arbitrarily small all the way to the ``reliability horizon''---so that semi-classical quantum gravity becomes unreliable before the gravitational back reaction becomes large.

Affiliated with

Also associated with

No associations

Rating

Traversable wormholes: the Roman ring does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Traversable wormholes: the Roman ring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Traversable wormholes: the Roman ring will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-258324