A Suggestive Way of Deriving the Quantum Probability Rule

TL;DR

This paper proposes a new derivation of the quantum probability rule, showing it can be obtained from assumptions about equal prior probabilities of final states, providing a foundational perspective.

Contribution

It introduces a suggestive method to derive the quantum probability rule from basic assumptions, offering a novel foundational insight.

Findings

Derivation of the quantum probability rule from equal a priori probabilities

Supports the modulus squared probability form as a consequence of initial assumptions

Provides a new perspective on the foundations of quantum mechanics

Abstract

The familiar "modulus squared" form of all quantum mechanical probabilities is derived from an assumption of equal a priori probabilities concerning the final states available.