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Quantum probability can't be derived without assuming it first

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  • 20 Oct 2026
  • phys.org

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Recent research by Jiaxuan Zhang from the University of Oxford highlights that the Born rule, essential for calculating quantum measurement outcomes, cannot be derived from more fundamental principles without assuming certain probabilities. This analysis critiques five major derivations of the Born rule, revealing that they all rely on specific assumptions, thus complicating the understanding of quantum randomness and its foundational explanations.

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Source: phys.org · checked 21 Oct 2026 · AI-assisted summary