Stable phantom energy traversable wormhole models

Abstract

A possible candidate for the present accelerated expansion of the Universe is ''phantom energy'', which possesses an equation of state of the form $\omega \equiv p/\rho <-1$, consequently violating the null energy condition. As this is the fundamental ingredient to sustain traversable wormholes, this cosmic fluid presents us with a natural scenario for the existence of these exotic geometries. In this context, we shall construct phantom wormhole geometries by matching an interior wormhole solution, governed by the phantom energy equation of state, to an exterior vacuum at a junction interface. Several physical properties and characteristics of these solutions are further investigated. The dynamical stability of the transition layer of these phantom wormholes to linearized spherically symmetric radial perturbations about static equilibrium solutions is also explored. It is found that the respective stable equilibrium configurations may be increased by strategically varying the wormhole throat radius.

8 pages, 8 figures. Contribution to the proceedings of the Albert Einstein Century International Conference, Paris, 18-22 July, 2005

References in corpus (2)

• Phantom Energy and Cosmic Doomsday
• Stable phantom energy traversable wormhole models

Cited by in corpus (10)

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• Charged traversable wormholes supported by Casimir energy with and without GUP corrections
• The Smeared Null Energy Condition
• Stable phantom energy traversable wormhole models
• Periodic Cosmological Evolutions of Equation of State for Dark Energy
• Collapsing Wormholes Sustained by Dustlike Matter
• 4D static solutions with interacting phantom fields
• Phase space of static wormholes sustained by an isotropic perfect fluid
• Magnetized dusty black holes and wormholes