Quantum Canonical Transformations: Physical Equivalence of Quantum Theories
arXiv:hep-th/9302062 · doi:10.1016/0370-2693(93)91106-W
Abstract
Two quantum theories are physically equivalent if they are related, not by a unitary transformation, but by an isometric transformation. The conditions under which a quantum canonical transformation is an isometric transformation are given.
11 pages, Imperial/TP/92-93/20
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