Summary
A Brans-Dicke theory is considered with a scalar-field-dependent cosmological term. Solutions of the field equations in a homogeneous and isotropic space-time are obtained and discussed.
Riassunto
Si considera una teoria di Brans-Dicke con un termine cosmologico dipendente da un campo scalare. Si ottengono e si discutono le soluzioni delle equazioni di campo in uno spazio-tempo omogeneo ed isotropo.
Резюме
Рассматривается теория Бранса-Дикка с космологческим членом, зависящим от скалярного поля. Получаются и обсуждаются рещения полевых уравнений в однородном и изотропном пространстве-времени.
Similar content being viewed by others
References
H. J. Blome andW. Priester:Naturwissenchaften,71, S528 (1984);S. A. Bludman:Nature (London),308, 319 (1984).
M. S. Turner, G. Steigman andL. M. Krauss: Fermilab preprint 32-A/84.
A. H. Guth:Phys. Rev. D,23, 347 (1981).
For an up-dated review on inflationary models and related topics, including the cosmological constant problem, seeA. D. Linde:Rep. Prog. Phys.,47, 925 (1984).
Gravitation and Cosmology: Principles and Applications of the General Theory of Relativity, byS. Weinberg (1972), Chapt. 15.
A. D. Linde:JETP Lett.,19, 5 (1974).
For a review seeE. S. Abers andB. W. Lee:Phys. Rep.,9, No. 1, 1 (1973).
See,e.g.,P. Langaker:Phys. Rep.,72, 185 (1981).
D. Lovelock:J. Math. Phys. (N. Y.),13, 874 (1972).
Theory and Experiments in Gravitational Physics, byC. Will (CUP, 1981).
C. Brans andR. Dicke:Phys. Rev.,124, No. 3, 925 (1961).
Solar system data involving post Newtonian limit favour ω≳500, see ref. (10)Theory and Experiments in Gravitational Physics, byC. Will (CUP, 1981) andA. D. Reasemberg et al.: Astrophys. J. Lett.,234, L129 (1979); however measurements of the precession of Mercury perihelia and Sun's oblateness seen to be consistent with low coupling, see ref. (5)Gravitation and Cosmology: Principles and Applications of the General Theory of Relativity, byS. Weinberg (1972), Chapt. 8.
K. Uehara andC. W. Kim:Phys. Rev. D,26, 2575 (1982).
M. Endo andT. Fukui:Gen. Rel. Grav.,8, 833 (1977).
A. D. Linde:Rep. Prog. Phys.,42, 391 (1979);T. W. B. Kibble:Phys. Rep.,67, No. 1, 183 (1980).
O. Bertolami: to be published inFortschr. Phys.
Author information
Authors and Affiliations
Additional information
Traduzione a cura della Redazione
Переведено редакцией.
An erratum to this article is available at http://dx.doi.org/10.1007/BF02759759.
Rights and permissions
About this article
Cite this article
Bertolami, O. Time-dependent cosmological term. Nuov Cim B 93, 36–42 (1986). https://doi.org/10.1007/BF02728301
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02728301