paper

What About Quantum Theory? Bayes and the Born Interpretation

arXiv:quant-ph/0611245

Abstract

I show that probabilities in quantum mechanics are a measure of belief in the presence of human ignorance, just like all other probabilities. The Born interpretation of the square of modulus of the wave function arises from the interaction of a quantum system with an observer, and probabilities will not arise unless the observer is unable to access all the information available in the system's wave function. Quantum mechanics generally does not permit all the information to be obtained, even in principle, just as in relativity information from outside the past light cone cannot be obtained. But probabilities do not imply indeterminism. Instead, quantum mechanics is more deterministic than classical mechanics.

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