Damping of the cosmological constant by a classical scalar field

Details Damping of the cosmological constant by a classical scalar field Damping of the cosmological constant by a classical scalar field

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phlb..205..447s&link_type=abstract

Physics Letters B, Volume 205, Issue 4, p. 447-450.

Physics

10

Scientific paper

The dynamical damping of a cosmological constant Λ by a classical scalar field is investigated. The field is free, massless, and non-minimally coupled to gravity via a term ξRφ2. The cosmological constant is damped if ξ<0, Λ>0 and ξ>1/2, Λ<0, and the decay is stable against small spatially homogeneous perturbations. For other values of Λ and ξ, damping solutions either do not exist, are unstable, or lead to recollapse of the universe.

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