Bell's and Mermin's inequalities, entangled coherent states and unitary operators

TL;DR

This paper investigates Bell's and Mermin's inequalities for entangled coherent states using unitary displacement operators, reporting a near-maximal violation of the Mermin inequality consistent with previous findings.

Contribution

It introduces the use of unitary displacement operators to analyze Bell and Mermin inequalities in entangled coherent states, highlighting their violation levels.

Findings

Mermin inequality is violated close to the maximum possible value.

The approach aligns with and confirms existing literature.

Employs unitary operators to scrutinize quantum correlations.

Abstract

We elaborate on the recent proposal of employing unitary operators in Quantum Mechanics. The Bell and Mermin inequalities for entangled coherent states are scrutinized by making use of the unitary displacement operators. A violation of the Mermin inequality close to the maximum allowed value is reported, in agreement with the existing literature.