An alternative to test experimentally Everett's theory

TL;DR

This paper proposes a novel experimental approach to test Everett's quantum theory without manipulating the observer, by exploiting finite-dimensional properties of the observer that lead to observable differences.

Contribution

It introduces a new method to experimentally test Everett's theory by analyzing finite-dimensional observer effects, avoiding direct operations on the observer.

Findings

Distinctive properties emerge in the observed system due to finite-dimensional observer assumptions.

The proposed method enables experimental differentiation of Everett's theory from other interpretations.

The approach circumvents current technological limitations on manipulating observers in quantum experiments.

Abstract

It is generally accepted that Everett's theory of quantum mechanics cannot be experimentally tested as such experiment would involve operations on the observer which are beyond our current technology. We propose an alternative to test Everett's theory which does not involve any operation on the observer. If we assume that the observer is of finite dimension, it is shown that Everett's theory leads to distinctive properties for the system being observed, and that such difference can be experimentally tested.