Testing a Bell Inequality with a Remote Quantum Processor

TL;DR

This paper presents a comprehensive, beginner-friendly guide to testing Bell inequalities using IBM Quantum processors, including derivations and experimental instructions for educational purposes.

Contribution

It provides the first integrated resource combining derivations, quantum predictions, and practical steps for students to perform Bell tests on IBM Quantum.

Findings

Successful demonstration of Bell inequality violation using IBM Quantum.

Educational framework for teaching quantum entanglement and nonlocality.

Accessible instructions for students to replicate the experiment.

Abstract

IBM Quantum offers free remote access to real quantum processors. One of the many experiments now accessible to all students is a test of Bell inequalities. This experiment introduces the rigorous mysteries that physicists have grappled with for a century. Using IBM Quantum to test Bell inequalities is not new. However, we are unaware of any single reference, appropriate for introductory students, that contains (1) the derivation of a Bell inequality, (2) the derivation of the corresponding quantum prediction, and (3) instructions for carrying out the experiment with IBM Quantum.