# Discrete gravity as a topological field theory with light-like curvature defects

@article{Wieland2017DiscreteGA, title={Discrete gravity as a topological field theory with light-like curvature defects}, author={Wolfgang Wieland}, journal={Journal of High Energy Physics}, year={2017}, volume={2017}, pages={1-43} }

A bstractI present a model of discrete gravity as a topological field theory with defects. The theory has no local degrees of freedom and the gravitational field is trivial everywhere except at a number of intersecting null surfaces. At these null surfaces, the gravitational field can be singular, representing a curvature defect propagating at the speed of light. The underlying action is local and it is studied in both its Lagrangian and Hamiltonian formulation. The canonically conjugate… CONTINUE READING

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