Entanglement and Quantum Superposition of a Macroscopic - Macroscopic system

TL;DR

This paper explores the non-local correlations and Bell inequality violations in a macro-macro quantum system involving two macroscopic superpositions separated by space, based on recent micro-macro entanglement studies.

Contribution

It introduces a new macro-macro entanglement paradigm and analyzes its potential for demonstrating non-locality through Bell's inequalities.

Findings

Macro-macro entanglement can produce non-local correlations.

Bell's inequalities can be violated in macro-macro systems.

Experimental challenges for macro-macro Bell tests are discussed.

Abstract

Two quantum Macro-states and their Macroscopic Quantum Superpositions (MQS) localized in two far apart, space - like separated sites can be non-locally correlated by any entangled couple of single-particles having interacted in the past. This novel Macro - Macro paradigm is investigated on the basis of a recent study on an entangled Micro-Macro system involving N=10^5 particles. Crucial experimental issues as the violation of Bell's inequalities by the Macro - Macro system are considered.