Abstract
The Hamiltonian formulation of the BRST method for quantizing constrained systems developed recently by Nemeschanskyet al is applied to the well-known problem of the conical pendulum in classical mechanics. The similarity of the system to a gauge theory wherein the two constraints serve as generators of local Abelian gauge transformations is also pointed out. The definition of the physical states of the system as a gauge theory and also as a BRST invariant theory is then discussed in some detail.
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Kamath, S.G. BRST invariance and the conical pendulum. Pramana - J. Phys. 38, 11–20 (1992). https://doi.org/10.1007/BF02847900
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DOI: https://doi.org/10.1007/BF02847900