A Higgs Mechanism for Gravity. Part II: Higher Spin Connections

Details A Higgs Mechanism for Gravity. Part II: Higher Spin Connections A Higgs Mechanism for Gravity. Part II: Higher Spin Connections

2006-02-22

arxiv.org/abs/hep-th/0602225v2

Phys.Rev.D73:124023,2006

Physics

High Energy Physics

High Energy Physics - Theory

17 pages; discussion on local Poincare invariance and matter currents added; references added

Scientific paper

10.1103/PhysRevD.73.124023

We continue the work of hep-th/0503024 in which gravity is considered as the Goldstone realization of a spontaneously broken diffeomorphism group. We complete the discussion of the coset space Diff(d,R)/SO(1,d-1) formed by the d-dimensional group of analytic diffeomorphisms and the Lorentz group. We find that this coset space is parameterized by coordinates, a metric and an infinite tower of higher-spin-like or generalized connections. We then study effective actions for the corresponding symmetry breaking which gives mass to the higher spin connections. Our model predicts that gravity is modified at high energies by the exchange of massive higher spin particles.

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