Weak equivalence principle from a spontaneously broken gauge theory of gravity
DOI: 10.1016/J.PHYSLETB.2011.06.077
关键词: Physics 、 Explicit symmetry breaking 、 Spontaneous symmetry breaking 、 Mathematical physics 、 Chiral symmetry breaking 、 Symmetry breaking 、 Classical mechanics 、 Symmetry protected topological order 、 Cosmological constant 、 Gauge theory 、 Higgs field
摘要: Abstract 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 cosmological constant related to tiny scale breaking. It is shown that not only ‘background’ metric emerges from Higgs-like mechanism, but also consistently geodesic equation central Einsteinʼs equivalence principle. In next order breaking scale, induced torsion could even provoke Lorentz violation.
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