Where has the fifth dimension gone?
- 15 April 1980
- journal article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 21 (8), 2167-2170
- https://doi.org/10.1103/physrevd.21.2167
Abstract
We show that a simple solution to the vacuum field equations of general relativity in 4 + 1 space-time dimensions leads to a cosmology which at the present epoch has 3 + 1 observable dimensions in which the Einstein-Maxwell equations are obeyed. The large ratio of the electromagnetic to gravitational forces is a consequence of the age of the Universe, in agreement with Dirac's large-number hypothesis. DOI: http://dx.doi.org/10.1103/PhysRevD.21.2167 © 1980 The American Physical SocietyKeywords
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