Quantum Measurement and Objective Classical Reality

TL;DR

This paper investigates quantum measurement within Everettian quantum mechanics, proposing a unitary measurement process supported by prior correlations, and suggests that such measurements create a stable, objective classical reality.

Contribution

It introduces an explicit unitary measurement procedure based on prior correlations, highlighting correlation as a resource in quantum measurement and the emergence of classical reality.

Findings

Prior correlated states enable unitary measurements.

Correlation acts as a resource in measurement processes.

A network of measurements leads to stable classical reality.

Abstract

We explore quantum measurement in the context of Everettian unitary quantum mechanics and construct an explicit unitary measurement procedure. We propose the existence of prior correlated states that enable this procedure to work and therefore argue that correlation is a resource that is consumed when measurements take place. It is also argued that a network of such measurements establishes a stable objective classical reality.