Abstract
Quantum Hamiltonian systems corresponding to classical systems related by a general canonical transformation are considered. The differential equation to find the unitary operator, which corresponds to the canonical transformation and connects quantum states of the original and transformed systems, is obtained. The propagator associated with their wave functions is found by the unitary operator. Quantum systems related by a linear canonical point transformation are analyzed. The results are tested by finding the wave functions of the under-, critical-, and over-damped harmonic oscillator from the wave functions of the harmonic oscillator, free-particle system, and negative harmonic potential system, using the unitary operator to connect them, respectively.
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Yeon, K.H., Kim, S.S., Um, C.I. et al. Quantum Dynamics of Systems Connected by a Canonical Transformation. International Journal of Theoretical Physics 42, 2043–2059 (2003). https://doi.org/10.1023/A:1027387103620
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DOI: https://doi.org/10.1023/A:1027387103620