Abstract
Abstract The Batalin-Vilkovisky quantization method is applied to a system with first-class primary constraints linear in momenta. The quantum master equation is solved and the ambiguity in the O ( h ) term is fixed under the natural requirement of reparametrization invariance of the path-integral measure. Our result agrees with the one we previously obtained from reduced path-integral quantization, where unitarity is obvious once the usual assumptions about the positivity of the spectrum of the reduced theory are made.
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