Investigating bounds on decoherence in quantum mechanics via B and D-mixing

TL;DR

This paper analyzes how experimental measurements of B and D meson mixing can set bounds on quantum decoherence, challenging previous assumptions and suggesting future measurements for tighter constraints.

Contribution

It provides a new analysis of decoherence bounds using recent experimental data and critiques earlier bounds based on unjustified assumptions.

Findings

Previous bounds relied on unjustified assumptions.

Recent measurements tighten decoherence constraints.

Certain future experiments could significantly improve bounds.

Abstract

We investigate bounds on decoherence in quantum mechanics by studying $B$ and $D$-mixing observables, making use of many precise new measurements, particularly from the LHC and B factories. In that respect we show that the stringent bounds obtained by a different group in 2013 rely on unjustified assumptions. Finally, we point out which experimental measurements could improve the decoherence bounds considerably.