Maintaining a Wormhole with a Scalar Field

Details Maintaining a Wormhole with a Scalar Field Maintaining a Wormhole with a Scalar Field

1998-06-16

arxiv.org/abs/gr-qc/9806071v1

Phys.Rev. D56 (1997) 4724-4728

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, LaTex

Scientific paper

10.1103/PhysRevD.56.4724

It is well known that it takes matter that violates the averaged weak energy condition to hold the throat of a wormhole open. The production of such ``exotic'' matter is usually discussed within the context of quantum field theory. In this paper I show that it is possible to produce the exotic matter required to hold a wormhole open classically. This is accomplished by coupling a scalar field to matter that satisfies the weak energy condition. The energy-momentum tensor of the scalar field and the matter separately satisfy the weak energy condition, but there exists an interaction energy-momentum tensor that does not. It is this interaction energy-momentum tensor that allows the wormhole to be maintained.

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