Derivation of the Born rule from operational assumptions

@article{Saunders2004DerivationOT,
  title={Derivation of the Born rule from operational assumptions},
  author={Simon Saunders},
  journal={Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences},
  year={2004},
  volume={460},
  pages={1771 - 1788}
}
  • S. Saunders
  • Published 21 November 2002
  • Mathematics
  • Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
The Born rule is derived from operational assumptions, together with assumptions of quantum mechanics that concern only the deterministic development of the state. Unlike Gleason's theorem, the argument applies even if probabilities are defined for only a single resolution of the identity, so it applies to a variety of foundational approaches to quantum mechanics. It also provides a probability rule for state spaces that are not Hilbert spaces. 
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