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Gauge Invariances in Second Class Constrained Systems - A Comparative Look at Two Methods

A. S. Vytheeswaran
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Abstract

We look at and compare two different methods developed earlier for inducing gauge invariances in systems with second class constraints. These two methods, the Batalin-Fradkin method and the Gauge Unfixing method, are applied to a number of systems. We find that the extra field introduced in the Batalin-Fradkin method can actually be found in the original phase space itself.

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A. S. Vytheeswaran. 1999-04-12. Gauge Invariances in Second Class Constrained Systems - A Comparative Look at Two Methods. https://arxiv.org/abs/hep-th/9904084

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