The complementarity of single-photon's particle-like and wave-like behaviors can be described by the inequality D2+V2≤1, with D being the path distinguishability and V being the fringe visibility. In this paper, we generalize this duality relation to multi-photon case, where two new concepts, higher order distinguishability and higher order fringe visibility, are introduced to quantify the higher order particle-like and wave-like behaviors of multi-photons.
@article{arxiv.1212.4255,
title = {Higher order wave-particle duality},
author = {Jie-Hui Huang and Sabine Wölk and Shi-Yao Zhu and M. Suhail Zubairy},
journal= {arXiv preprint arXiv:1212.4255},
year = {2015}
}