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Quaternionic quantum mechanics in real Hilbert space

Quantum Physics 2021-01-12 v1 Mathematical Physics math.MP

Abstract

A formulation of quaternionic quantum mechanics (H\mathbb{H}QM) is presented in terms of a real Hilbert space. Using a physically motivated scalar product, we prove the spectral theorem and obtain a novel quaternionic Fourier series. After a brief discussion on unitary operators in this formalism, we conclude that this quantum theory is indeed consistent, and can be a valuable tool in the search for new physics.

Keywords

Cite

@article{arxiv.1803.11523,
  title  = {Quaternionic quantum mechanics in real Hilbert space},
  author = {Sergio Giardino},
  journal= {arXiv preprint arXiv:1803.11523},
  year   = {2021}
}
R2 v1 2026-06-23T01:09:57.211Z