Comment on Demystifying the constancy of the Ermakov-Lewis invariant for a time-dependent oscillator
Abstract
We show that a simple modification of the Lagrangian proposed by Padmanabhan in the paper [Mod. Phys. Lett. A 33, 1830005 (2018), arXiv:1712.07328] leads to the most general dynamical invariant in [Ray and Reid, Phys. Lett. A 71, 317 (1979)]
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