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Quantum Algorithms

Relative Information, Relative Facts

arXiv
Authors: Andrea Di Biagio, Carlo Rovelli

Year

2025

Paper ID

51301

Status

Preprint

Abstract Read

~2 min

Abstract Words

90

Citations

N/A

Abstract

We offer a fresh perspective on the relational interpretation of quantum mechanics as a way of thinking about the world described by quantum theory based on quantifiable notions of information. This allows us to provide a definition of a relative fact, with no addition to orthodox quantum theory and no fundamentally special role for observers. By associating perspectives with commutative observables rather than entire quantum systems, several previous problems with the interpretation are dissolved. As a side result, we show how a quantum measurement, properly described, is a continuous process.

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  • It adds a 2025 reference point for readers tracking recent quantum research.
  • We offer a fresh perspective on the relational interpretation of quantum mechanics as a way of thinking about the world described by quantum theory based on quantifiable...

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