Variation of the Gravitational Constant in the Radiation-Dominated Universe
Author
Source
Physics Research International
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-4, 4 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-02-15
Country of Publication
Egypt
No. of Pages
4
Main Subjects
Abstract EN
The unification of classical electrodynamics and general relativity within the context of five-dimensional general relativity (Kaluza, 1921, and Thiry, 1948) contains a scalar field which may be identified with the gravitational constant, G.
The field equations of this theory are solved under conditions of the Robertson-Walker metric for flat space, for a radiation-dominated universe—a model appropriate for the early history of our universe.
This leads to a cosmology wherein G is inversely proportional to the Robertson-Walker scale factor.
This result is discussed in the context of the Dirac large number hypothesis and in the context of an expression for G in terms of atomic constants.
American Psychological Association (APA)
Williams, L. L.. 2012. Variation of the Gravitational Constant in the Radiation-Dominated Universe. Physics Research International،Vol. 2012, no. 2012, pp.1-4.
https://search.emarefa.net/detail/BIM-481348
Modern Language Association (MLA)
Williams, L. L.. Variation of the Gravitational Constant in the Radiation-Dominated Universe. Physics Research International No. 2012 (2012), pp.1-4.
https://search.emarefa.net/detail/BIM-481348
American Medical Association (AMA)
Williams, L. L.. Variation of the Gravitational Constant in the Radiation-Dominated Universe. Physics Research International. 2012. Vol. 2012, no. 2012, pp.1-4.
https://search.emarefa.net/detail/BIM-481348
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-481348