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29 March 2024
 
  » arxiv » astro-ph/9810431

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How to determine an effective potential for a variable cosmological term
A.A. Starobinsky ;
Date 27 Oct 1998
Journal JETP Lett. 68 (1998) 757-763; Pisma Zh.Eksp.Teor.Fiz. 68 (1998) 721-726
Subject astro-ph gr-qc
AbstractIt 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 $V(varphi)$, then this potential can be unambiguously determined from the following observational data: either from the behaviour 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 one).
Source arXiv, astro-ph/9810431
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