Equivalence of a harmonic oscillator to a free particle and Eisenhart lift
arXiv:2106.09523 · doi:10.1016/j.aop.2021.168623
Abstract
It is widely known in quantum mechanics that solutions of the Schröinger equation (SE) for a linear potential are in one-to-one correspondence with the solutions of the free SE. The physical reason for this correspondence is Einstein's principle of equivalence. What is usually not so widely known is that solutions of the Schrödinger equation with harmonic potential can also be mapped to the solutions of the free Schrödinger equation. The physical understanding of this equivalence is not known as precisely as in the case of the equivalence principle. We present a geometric picture that will link both of the above equivalences with one constraint on the Eisenhart metric.
arXiv comment28 pages, 1 figure, version to be published in Annals of Physics
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