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arXiv · 1212.4238

Trivial symmetries in a 3D topological torsion model of gravity

Rabin Banerjee·Debraj Roy
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Abstract

We study the gauge symmetries in a Mielke-Baekler type model of gravity in 2+1 dimensions. The model is built in a Poincare gauge theory framework where localisation of Poincare symmetries lead to gravity. However, explicit construction of gauge symmetries in the model through a Hamiltonian procedure yields an apparently different set of symmetries, as has been noted by various authors. Here, we show that the two sets of symmetries are actually equivalent in a canonical sense, their difference being just a set of trivial symmetries.

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Rabin Banerjee, Debraj Roy. 2012-12-18. Trivial symmetries in a 3D topological torsion model of gravity. https://doi.org/10.1088/1742-6596%2F405%2F1%2F012028

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