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arxiv: 0906.2718 · v1 · submitted 2009-06-15 · 🪐 quant-ph

A formal proof of the Born rule from decision-theoretic assumptions

classification 🪐 quant-ph
keywords argumentborndecision-theoreticproofproposedquantumruleapproach
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I develop the decision-theoretic approach to quantum probability, originally proposed by David Deutsch, into a mathematically rigorous proof of the Born rule in (Everett-interpreted) quantum mechanics. I sketch the argument informally, then prove it formally, and lastly consider a number of proposed ``counter-examples'' to show exactly which premises of the argument they violate.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Fixed-PVM Born Rule Uniqueness from Fisher Non-Expansion and Operational Calibration

    quant-ph 2026-04 unverdicted novelty 6.0

    The Born rule for a fixed projective measurement is the only readout map obeying square-root regularity on Fubini-Study geodesics, the universal readout Cramer-Rao bound, and operational basis calibration.

  2. A decision-theoretic approach to dealing with uncertainty in quantum mechanics

    quant-ph 2025-03 unverdicted novelty 5.0

    A decision-theoretic model is developed in which quantum measurements act as uncertain decisions whose utilities encode Born's rule, enabling an imprecise-probabilities treatment of quantum uncertainty.