Proposal for a Bell Test with Entangled Atoms of Different Mass

TL;DR

This paper proposes a novel Bell test experiment using momentum-entangled atom pairs of different masses, employing atom interferometers to explore quantum mechanics and gravity intersection.

Contribution

It introduces a new experimental setup with entangled atoms of different masses and demonstrates its potential to violate Bell's inequality.

Findings

Numerical simulations predict a significant violation of Bell's inequality.

The method extends to various atom species beyond helium.

The experiment offers a new way to study quantum mechanics and gravity.

Abstract

We propose a Bell test experiment using momentum-entangled atom pairs of different masses, specifically metastable helium isotopes 3He* and 4He*, though the method extends to other atom species. Entanglement is generated via collisions, after which the quantum states are manipulated using two independent atom interferometers, enabling precise phase control over each species. Numerical simulations predict a significant violation of Bell's inequality under realistic conditions. This proposal opens a new paradigm to study the intersection of quantum mechanics and gravity.