Quantum contextuality in N-boson systems

TL;DR

This paper demonstrates quantum contextuality in N-boson systems by showing maximum violation of a CHSH-type inequality using collective multi-boson observables, with a proposed optical testing scheme.

Contribution

It introduces a novel approach to quantum contextuality analysis in bosonic systems using collective observables, differing from previous single-particle methods.

Findings

Maximum violation of CHSH-type inequality in N-boson systems

Use of collective multi-boson operators for contextuality detection

Proposed quantum optical setup for experimental testing

Abstract

Quantum contextuality in systems of identical bosonic particles is explicitly exhibited via the maximum violation of a suitable inequality of Clauser-Horne-Shimony-Holt type. Unlike the approaches considered so far, which make use of single-particle observables, our analysis involves collective observables constructed using multi-boson operators. An exemplifying scheme to test this violation with a quantum optical setup is also discussed.