Title

BRST analysis of 2+1 gravity

Document Type

Article

Publication Date

1-1-1990

Abstract

The classical formulation and the canonical and path-integral quantization of triad Einstein gravity in 2+1 dimensions is discussed using the Hamiltonian Becchi-Rouet-Stora-Tyutin (BRST) approach. We construct the BRST charge and demonstrate explicitly the BRST symmetry of the theory. We show explicitly that for this particular system, where both approaches can be carried up to their last consequences, the canonical BRST quantization coincides exactly with Dirac quantization. We also show how to construct from the BRST-invariant action the gauge-fixed action used by Witten to calculate topology-changing amplitudes. © 1990 The American Physical Society.

Publication Source (Journal or Book title)

Physical Review D

First Page

3395

Last Page

3400

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