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Are complex numbers used in the way the are in quantum mechanics for convenience sake? Or are they fundamental to quantum mechanics. In other words can quantum mechanics be completely described without the use of complex numbers?

Qmechanic
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Blue5000
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  • Possible duplicates: https://physics.stackexchange.com/q/32422/2451 and links therein. – Qmechanic Aug 27 '23 at 13:50
  • See also these links, written by Scott Aaronson. – J.G. Aug 27 '23 at 14:10
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    See also the recent Renou MO, Trillo D, Weilenmann M, Le TP, Tavakoli A, Gisin N, Acín A, Navascués M. Quantum theory based on real numbers can be experimentally falsified. Nature. 2021 Dec 23;600(7890):625-9. https://doi.org/10.1038/s41586-021-04160-4 – ZeroTheHero Aug 27 '23 at 15:34

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