Metric Unification of Gravitation and Electromagnetism Solves the Cosmological Constant Problem
Abstract
We first review the cosmological constant problem, and then mention a conjecture of Feynman according to which the general relativistic theory of gravity should be reformulated in such a way that energy does not couple to gravity. We point out that our recent unification of gravitation and electromagnetism through a symmetric tensor has the property that the free electromagnetic energy and the vacuum energy do not contribute explicitly to the curvature of spacetime just like the free gravitational energy. Therefore in this formulation of general relativity, the vacuum energy density has its very large value today as in the early universe, while the cosmological constant does not exist at all.
 Publication:

arXiv eprints
 Pub Date:
 February 2000
 arXiv:
 arXiv:grqc/0002061
 Bibcode:
 2000gr.qc.....2061O
 Keywords:

 General Relativity and Quantum Cosmology;
 Astrophysics;
 High Energy Physics  Phenomenology
 EPrint:
 LaTex, 6 pages. An erroneous statement has been corrected