On thin-shell wormholes evolving in flat FRW spacetimes

Details On thin-shell wormholes evolving in flat FRW spacetimes On thin-shell wormholes evolving in flat FRW spacetimes

2011-02-25

arxiv.org/abs/1102.5284v1

Mod.Phys.Lett.A26:857-863,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages; to appear in MPLA

Scientific paper

10.1142/S0217732311035407

We analize the stability of a class of thin-shell wormholes with spherical symmetry evolving in flat FRW spacetimes. The wormholes considered here are supported at the throat by a perfect fluid with equation of state $\mathcal{P}=w\sigma$ and have a physical radius equal to $aR$, where $a$ is a time-dependent function describing the dynamics of the throat and $R$ is the background scale factor. The study of wormhole stability is done by means of the stability analysis of dynamic systems.

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