Title

Solitonic instabilities in de sitter universes

Document Type

Article

Publication Date

2-8-1988

Abstract

We present three new exact solutions of the four-dimensional Einstein field equations, that can be interpreted as solitonic perturbations of a vacuum de Sitter spacetime, obtained by means of the inverse scattering technique. The solutions are unstable against this type of perturbations, in spite of the fact that they arbitrary small for sufficiently early comoving time. One of the metrics has an energy-momentum tensor that satisfies initially the dominant and strong energy condition and may therefore be relevant to the problem of a precise statement of the cosmic no hair conjecture. © 1988.

Publication Source (Journal or Book title)

Physics Letters A

First Page

60

Last Page

64

This document is currently not available here.

Share

COinS