Nonlinear instability of wormholes supported by exotic dust and a magnetic field

Details Nonlinear instability of wormholes supported by exotic dust and a magnetic field Nonlinear instability of wormholes supported by exotic dust and a magnetic field

2010-01-08

arxiv.org/abs/1001.1202v2

Phys.Rev.D81:047502,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, no figures. A small paragraph added in Sec. III. An appendix added explaining the derivation of the main equations

Scientific paper

10.1103/PhysRevD.81.047502

Recently, spherically symmetric, static wormholes supported by exotic dust
and a radial magnetic field have been derived and argued to be stable with
respect to linear radial fluctuations. In this report we point out that these
wormholes are unstable due to the formation of shell-crossing singularities
when the nonlinearities of the theory are taken into account.

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