An Experimental Proposal to Test Dynamic Quantum Non-locality with Single-Atom Interferometry

TL;DR

This paper proposes an experimental test using single-atom interferometry to observe dynamic quantum non-locality related to the quantum equation of motion, distinct from Bell inequality-based non-locality.

Contribution

It introduces a novel experimental approach to detect dynamic quantum non-locality via evolution of the displacement operator in a controlled atomic system.

Findings

Design of a feasible experimental setup with cold atoms in optical lattices

Identification of measurable signatures of dynamic quantum non-locality

Discussion of realistic experimental conditions for observing the effect

Abstract

Quantum non-locality based on the well-known Bell inequality is of kinematic nature. A different type of quantum non-locality, the non-locality of the quantum equation of motion, is recently put forward with connection to the Aharonov-Bohm effect [Nature Phys. 6, 151 (2010)]. Evolution of the displacement operator provides an example to manifest such dynamic quantum non-locality. We propose an experiment using single-atom interferometry to test such dynamic quantum non-locality. We show how to measure evolution of the displacement operator with clod atoms in a spin-dependent optical lattice potential and discuss signature to identify dynamic quantum non-locality under a realistic experimental setting.