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Implications of One-Loop Quantum Correction in the Background Geometry of 5-Dimensional Kaluza-Klein Cosmology

Authors

M. Ansari

Abstract

Through dimensional reduction and one-loop quantum correction of scalar
and spinor fields, time-dependent cosmological constant Λef f , effective gravitational constant Gef f and fine structure constant are derived in 5-dimensional Kaluza-Klein model for cosmology. If the internal manifold contracts with time and stabilizes itself at some later time, one possibility gets fine-structure constant equal to
(1/137)  , G_{ef f} ~ GN and  Λ_{ef f} ~ 0 .

Keywords and Phrases : Newtonian gravitational constant, scalar fields,
Dirac spinors, effective action for gravity, induced Maxwell’s terms
AMS Subject Classification : : 83E15.

Received date : January 6, 2010

Accepted date: March 22, 2010

cited by: J.T.S. Vol. 4 (2010), pp.77-86

 

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