Interacting classical and quantum particles

TL;DR

This paper explores a hybrid classical-quantum theory for coupled particles, predicting unique experimental outcomes that could differentiate it from standard quantum mechanics, with implications for quantum measurement and gravity.

Contribution

It applies a parameter-free hybrid theory to coupled particles, proposing testable predictions and addressing foundational issues in quantum measurement and gravity.

Findings

Distinctive experimental predictions from the hybrid theory

No free parameters in the model

Implications for quantum measurement and gravity

Abstract

We apply Hall and Reginatto's theory of interacting classical and quantum ensembles to harmonically coupled particles, with a view to understanding its experimental implications. This hybrid theory has no free parameters and makes distinctive predictions that should allow it to be experimentally distinguished from quantum mechanics. It also bears on the questions of quantum measurement and quantum gravity.