Lattice Chern-Simons Gravity via Ponzano-Regge Model

Details Lattice Chern-Simons Gravity via Ponzano-Regge Model Lattice Chern-Simons Gravity via Ponzano-Regge Model

1999-02-23

arxiv.org/abs/hep-th/9902165v1

Nucl.Phys. B555 (1999) 629-649

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX, 26 pages, 6 eps figures

Scientific paper

10.1016/S0550-3213(99)00331-4

We propose a lattice version of Chern-Simons gravity and show that the partition function coincides with Ponzano-Regge model and the action leads to the Chern-Simons gravity in the continuum limit. The action is explicitly constructed by lattice dreibein and spin connection and is shown to be invariant under lattice local Lorentz transformation and gauge diffeomorphism. The action includes the constraint which can be interpreted as a gauge fixing condition of the lattice gauge diffeomorphism.

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