Non-classical correlations from dissociation time entanglement

TL;DR

This paper introduces a novel dissociation-time entangled state from molecular dissociation, enabling Bell inequality violations with position measurements and advancing tests of non-classical correlations in macroscopically distinct systems.

Contribution

It presents a new type of entangled state from molecular dissociation that allows for unambiguous demonstration of non-classical correlations using position measurements.

Findings

Dissociation-time entangled state can violate Bell inequalities.

Dispersion effects are analyzed and shown to impact entanglement.

Potential to observe non-classical correlations in macroscopically distinct systems.

Abstract

We discuss a strongly entangled two-particle state of motion that emerges naturally from the double-pulse dissociation of a diatomic molecule. This state, which may be called dissociation-time entangled, permits the unambiguous demonstration of non-classical correlations by violating a Bell inequality based on switched single particle interferometry and only position measurements. We apply time-dependent scattering theory to determine the detrimental effect of dispersion. The proposed setup brings into reach the possibility of establishing non-classical correlations with respect to system properties that are truly macroscopically distinct.