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A Forced Harmonic Oscillator, Interpreted as Diffraction of Light: https://arxiv.org/abs/2004.12675
Toshihiko Hiraiwa, Kouichi Soutome, Hitoshi Tanaka
We investigate a simple forced harmonic oscillator with a natural frequency varying with time. It is shown that the time evolution of such a system can be written in a simplified form with Fresnel integrals, as long as the variation of the natural frequency is sufficiently slow compared to the time period of oscillation. Thanks to such a simple formulation, we found, for the first time, that a forced harmonic oscillator with a slowly-varying natural frequency is essentially equivalent to diffraction of light.
Comments: 4 pages, 3 figures

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