Extension to velocity dependent gauge transformations |
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Authors: | Reiji Sugano Yusho Kagraoka |
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Institution: | 1. Department of Physics, Osaka City University, 558, Osaka, Japan
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Abstract: | In previous papers it was shown that in phase space a generator of gauge transformations for a singular Lagrangian \(L(q,\dot q)\) is given byGεα]=ε k α φ α k (q,p,t) where φ α k are first class constraints andG is subjected to a stationarity condition. A non-trivial extension from velocity (or momentum) independent gauge transformations to velocity dependent ones is realized, by replacing gauge functions εα(t) with momentum dependent functions εα(q,p,t), as long asG satisfies the stationarity condition. Inversely, it is proved in a classical framework that, within velocity dependent gauge transformations, all generators of gauge transformations can be expressed in terms of the linear combinations of φ α k . |
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