Non-monotonic quantum to classical transition in multiparticle interference

TL;DR

This paper experimentally shows that many-particle interference signals can vary non-monotonically with particle distinguishability, revealing complex behavior in the quantum-to-classical transition for systems with more than two particles.

Contribution

It demonstrates experimentally and theoretically that non-monotonic behavior occurs in multiparticle interference signals during the quantum-to-classical transition.

Findings

Non-monotonic dependence of interference signals on particle distinguishability

Theoretical evidence of non-monotonicity as a generic feature in multiparticle correlations

Experimental validation of non-monotonic quantum-to-classical transition

Abstract

We experimentally demonstrate the non-monotonic dependence of genuine many-particle interference signals on the particles' mutual distinguishability. Our theoretical analysis shows that such non-monotonicity is a generic feature of the quantum to classical transition in multiparticle correlation functions of more than two particles.