Stability of a Robertson-Walker universe against stochastic perturbations

Details Stability of a Robertson-Walker universe against stochastic perturbations Stability of a Robertson-Walker universe against stochastic perturbations

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phla..129..363b&link_type=abstract

Physics Letters A, Volume 129, Issue 7, p. 363-366.

Physics

Scientific paper

The Einstein-Langevin equations for a Robertson-Walker universe in which a small stochastic perturbation is introduced in the deterministic equations of motion for the radius of the universe are analysed. We solve the associated nonlinear Fokker-Planck equation in the small noise limit using the Ω expansion and find that the cosmological constant plays an essential role in the long time stability of the model.
Fellowship holder at CONICET.

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