Elsevier

Physics Letters B

Volume 256, Issues 3–4, 14 March 1991, Pages 457-464
Physics Letters B

Contact transformations and the quantisation of constraint systems

https://doi.org/10.1016/0370-2693(91)91791-SGet rights and content

Abstract

The possibility of quantizing a constraint system, in such a way as to respect coordinate transformations in the configuration space, is explored. It is found that, within the Schrödinger representation, covariance of the quantum theory can be maintained only under those contact transformations leaving the Lagrange multiplier unchanged (within a constant scaling).

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