Quantum reference frames and particle mixing

TL;DR

This paper explores how quantum reference frames are essential for defining rest frames of mixed particles like mesons and neutrinos, and examines how frame-dependent entanglement impacts measurements.

Contribution

It introduces the concept of quantum reference frames for mixed particles and analyzes their role in entanglement and measurement dependence.

Findings

Quantum reference frames are necessary for mixed particle analysis.

Frame-dependent entanglement affects measurement outcomes.

Implications for particle physics experiments.

Abstract

We discuss the necessity and the emergence of quantum reference frames when attempting to define a rest frame for mixed particles. We analyze the corresponding concept of frame dependent entanglement and how it could affect measurements on mixed mesons and neutrinos.