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arXiv:2112.08461 · The European Physical Journal Plus

On the quantum origin of potentials

Saurya Das, Sourav Sur

Published Dec 30, 2021• 4 citations
arXivHTMLPDF
DOI
10.1140/epjp/s13360-021-02293-z

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We derive the energy levels associated with the even-parity wavefunctions of the harmonic oscillator with an additional delta-function potential at the origin. Our results bring to the attention of students a non-trivial and analytical example of a modification of the usual harmonic oscillator potential, with emphasis on the modification of the boundary conditions at the origin. This problem calls the attention of the students to an inaccurate statement in quantum mechanics textbooks often found in the context of the solution of the harmonic oscillator problem.