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Canonical Transformations in Quantum Mechanics

Arlen Anderson
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Abstract

Three elementary canonical transformations are shown both to have quantum implementations as finite transformations and to generate, classically and infinitesimally, the full canonical algebra. A general canonical transformation can, in principle, be realized quantum mechanically as a product of these transformations. It is found that the intertwining of two super-Hamiltonians is equivalent to there being a canonical transformation between them. A consequence is that the procedure for solving a differential equation can be viewed as a sequence of elementary canonical transformations trivializing the super-Hamiltonian associated to the equation. It is proposed that the quantum integrability of a system is equivalent to the existence of such a sequence.

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Arlen Anderson. 1992-05-25. Canonical Transformations in Quantum Mechanics. https://arxiv.org/abs/hep-th/9205080

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