Multiboson Correlation Interferometry with arbitrary single-photon pure states

TL;DR

This paper develops a comprehensive framework for analyzing multiboson correlation measurements with arbitrary single-photon pure states in linear interferometers, enabling new insights into quantum interference and entanglement.

Contribution

It provides a full description of multiboson correlation sampling and landscapes for arbitrary input states and interferometers, including novel interference and entanglement phenomena.

Findings

Demonstrates arbitrary-order quantum beat interference.

Shows 100% visibility entanglement correlations with distinguishable photons.

Provides a physical analysis of multiboson correlation sampling.

Abstract

We provide a compact full description of multiboson correlation measurements of arbitrary order N in passive linear interferometers with arbitrary input single-photon pure states. This allows us to physically analyze the novel problem of multiboson correlation sampling at the output of random linear interferometers. Our results also describe general multiboson correlation landscapes for an arbitrary number of input single photons and arbitrary interferometers. In particular, we use two different schemes to demonstrate, respectively, arbitrary-order quantum beat interference and 100% visibility entanglement correlations even for input photons distinguishable in their frequencies.