Spontaneous magnetism after a "remote" quench: a proposal to test Copenhagen interpretation

TL;DR

This paper proposes an experimental test for the Copenhagen interpretation by measuring spontaneous magnetism resulting from quantum state changes and entanglement collapse, linking quantum measurement to physical field alterations.

Contribution

It introduces a novel Gedankenexperiment to detect magnetic fields caused by entanglement collapse, providing a potential empirical test for foundational quantum interpretations.

Findings

Magnetic fields can be induced by quantum state changes.

Entanglement collapse may produce measurable magnetic effects.

The experiment applies to various particles and fundamental interactions.

Abstract

A change of quantum states for a quantum particle may lead to a change of physical field it exerts to the environment. We discuss such Gedankenexperiment for measuring the magnetic dipole fields associated with the electronic spins. When entangled, electrons are no longer free Dirac electrons but become an excited state in a quantum-electrodynamics sense. A measurement of magnetism associated with entanglement-collapse of electrons becomes a test for Copenhagen interpretation in the reign of quantum-electrodynamics. This proposal is equally applicable to other particles and their associated fields and interactions, such as neutrons and the electroweak force.