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How to determine an effective potential for a variable cosmological term

Journal of Experimental and Theoretical Physics Letters volume 68, pages 757–763 (1998)Cite this article

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).

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Authors and Affiliations

  1. Landau Institute of Theoretical Physics, Russian Academy of Sciences, 117334, Moscow, Russia

    A. A. Starobinsky

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Pis’ma Zh. Éksp. Teor. Fiz. 68, No. 10, 721–726 (25 November 1998)

Published in English in the original Russian journal. Edited by Steve Torstveit.

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Starobinsky, A.A. How to determine an effective potential for a variable cosmological term. Jetp Lett. 68, 757–763 (1998). https://doi.org/10.1134/1.567941

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  • DOI: https://doi.org/10.1134/1.567941

PACS numbers

  • 98.80.Cq
  • 95.35.+d