Gravitational gauge fields and the cosmological constant

Details Gravitational gauge fields and the cosmological constant Gravitational gauge fields and the cosmological constant

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984phrvd..29.1690p&link_type=abstract

Physical Review D (Particles and Fields), Volume 29, Issue 8, 15 April 1984, pp.1690-1698

Mathematics

Logic

33

Scientific paper

We describe field theories for which the action is completely independent of the metric and connection of the space-time manifold. The metric in our approach is no more a fundamental field than a hadron field is a fundamental field in QCD. The fundamental fields in the action are O(5) gauge fields and combinations of these fields are interpreted as the metric and connection so that conventional general relativity is obtained. Remarkably, all renormalizable matter actions for scalar, spinor, and Yang-Mills gauge fields can be made metric independent. Significantly, we find a new elementary invariance of the action which implies the cosmological constant must vanish. Finally, we discuss the quantum theory resulting from these ideas.

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