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Main Author: Reinsch, Matthias W.
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2605.29134
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author Reinsch, Matthias W.
author_facet Reinsch, Matthias W.
contents In the Bohr model of the hydrogen atom, the energy levels are a negative constant divided by the square of the level number. It is well known that special pairs of transitions exist that have the same energy difference, and a systematic treatment of this is given in the paper by Do and Phan (arXiv:2010.08338). In this paper we describe a simple method (using equal norms of Gaussian integers, and the Brahmagupta--Fibonacci identity) for finding all such pairs of transitions. We also analyze cascades of equal-frequency transitions, and use a theorem due to Fermat to show that cascades with more than three levels are not possible.
format Preprint
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institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Transitions with the same energy difference in the Bohr model of the hydrogen atom
Reinsch, Matthias W.
Mathematical Physics
In the Bohr model of the hydrogen atom, the energy levels are a negative constant divided by the square of the level number. It is well known that special pairs of transitions exist that have the same energy difference, and a systematic treatment of this is given in the paper by Do and Phan (arXiv:2010.08338). In this paper we describe a simple method (using equal norms of Gaussian integers, and the Brahmagupta--Fibonacci identity) for finding all such pairs of transitions. We also analyze cascades of equal-frequency transitions, and use a theorem due to Fermat to show that cascades with more than three levels are not possible.
title Transitions with the same energy difference in the Bohr model of the hydrogen atom
topic Mathematical Physics
url https://arxiv.org/abs/2605.29134