Weak equivalence principle from a spontaneously broken gauge theory of gravity

Details Weak equivalence principle from a spontaneously broken gauge theory of gravity Weak equivalence principle from a spontaneously broken gauge theory of gravity

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011phlb..702..187m&link_type=abstract

Physics Letters B, Volume 702, Issue 4, p. 187-190.

Mathematics

Logic

1

Topological Gravity, Bf Scheme, Spontaneous Symmetry Breaking, Equivalence Principle

Scientific paper

Further consequences of a finite topological field theory for gravity based on the SL(5,R) gauge group are reported. After symmetry breaking, it induces four-dimensional Einstein spaces with a cosmological constant related to the tiny scale of the symmetry breaking. It is shown that not only a 'background' metric emerges from a Higgs-like mechanism, but also consistently the geodesic equation central to Einstein's equivalence principle. In next order of the symmetry breaking scale, the induced torsion could even provoke a tiny Lorentz violation.

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