Experimental Evidence for a Dynamical Non-Locality Induced Effect in Quantum Interference Using Weak Values

TL;DR

This paper presents an optical experiment demonstrating that weak measurements can reveal effects caused by non-local exchange of modular momentum in quantum interference, providing experimental support for theoretical concepts of dynamical non-locality.

Contribution

The study provides the first experimental evidence of a non-local exchange effect in quantum interference using weak value measurements.

Findings

Measured weak values aligned with theoretical predictions.

Confirmed the existence of a non-local exchange effect in quantum interference.

Supported the role of dynamical non-locality in quantum phenomena.

Abstract

The quantum theoretical concepts of modular momentum and dynamical non-locality, which were introduced four decades ago, have recently been used to explain single particle quantum interference phenomena. Although the non-local exchange of modular momentum associated with such phenomena cannot be directly observed, it has been suggested that effects induced by this exchange can be measured experimentally using weak measurements of pre- and post-selected ensembles of particles. This paper reports on such an optical experiment that yielded measured weak values that were consistent with the theoretical prediction of an effect induced by a non-local exchange of modular momentum.