On thin-shell wormholes evolving in flat FRW spacetimes

Abstract

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.

8 pages; to appear in MPLA

References in corpus (5)

• Traversable wormholes: Some simple examples
• Traversable wormholes from surgically modified Schwarzschild spacetimes
• Stability of Chaplygin gas thin-shell wormholes
• Plane symmetric thin-shell wormholes: solutions and stability
• Thin shell wormholes in higher dimensiaonal Einstein-Maxwell theory