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How to determine an effective potential for a variable cosmological term

  • A. A. Starobinsky
Gravity, Astrophysics

Abstract

It is shown that if a variable cosmological term in the present Universe is described by a scalar field with minimal coupling to gravity and with some phenomenological self-interaction potential V(ϕ), then this potential can be unambiguously determined from the following observational data: either from the behavior of density perturbations in dustlike matter component as a function of redshift (given the Hubble constant additionally), or from the luminosity distance as a function of redshift (given the present density of dustlike matter in terms of the critical value).

PACS numbers

98.80.Cq 95.35.+d 

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Copyright information

© MAIK "Nauka/Interperiodica" 1998

Authors and Affiliations

  • A. A. Starobinsky
    • 1
  1. 1.Landau Institute of Theoretical PhysicsRussian Academy of SciencesMoscowRussia

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