PreprintarXiv licencearXiv
Observation of Hong-Ou-Mandel interference between photon and polariton
Abstract
Light-matter interactions underlie many quantum technologies, yet whether quasiparticles formed from such interactions preserve the full quantum state of light remains unresolved. Surface plasmon polaritons (SPPs), a class of polaritons formed by interacting photons with free-electron oscillations at metal-dielectric interfaces, are prime candidates to explore this question. Here we demonstrate quantum interference between single photons and SPPs using an Au-SiNx integrated photonic-plasmonic device. Our results reveal that SPPs retain the indistinguishability of their excitation photons, establishing SPP as a viable quantum information carrier and opening a potential route toward photonic-plasmonic quantum circuitry.
Related
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- Two particle interference: The Hanbury Brown Twiss and Hong Ou Mandel experiments
- A hybrid quantum interferometer bridging Hong-Ou-Mandel and N00N-state interference
BibTeX
@misc{fan2026observation,
title = {{Observation of Hong-Ou-Mandel interference between photon and polariton}},
author = {Yun-Ru Fan and Ying-Ao Su and Kai Guo and Bo-Yu Fan and Yao-Qing Zhang and Hai-Zhi Song and Hao Li and Yong Geng and Kun Chen and Deng-Ke Zhang and Li-Xing You and Yan-Yu Wei and Guang-Can Guo and Qiang Zhou},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.02200},
eprint = {2609.02200},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.02200},
}
RIS
TY - UNPB
TI - Observation of Hong-Ou-Mandel interference between photon and polariton
AU - Yun-Ru Fan
AU - Ying-Ao Su
AU - Kai Guo
AU - Bo-Yu Fan
AU - Yao-Qing Zhang
AU - Hai-Zhi Song
AU - Hao Li
AU - Yong Geng
AU - Kun Chen
AU - Deng-Ke Zhang
AU - Li-Xing You
AU - Yan-Yu Wei
AU - Guang-Can Guo
AU - Qiang Zhou
PY - 2026
DA - 2026/09/02
PB - arXiv
DO - 10.48550/arxiv.2609.02200
UR - https://arxiv.org/abs/2609.02200
AB - Light-matter interactions underlie many quantum technologies, yet whether quasiparticles formed from such interactions preserve the full quantum state of light remains unresolved. Surface plasmon polaritons (SPPs), a class of polaritons formed by interacting photons with free-electron oscillations at metal-dielectric interfaces, are prime candidates to explore this question. Here we demonstrate quantum interference between single photons and SPPs using an Au-SiN_x integrated photonic-plasmonic device. Our results reveal that SPPs retain the indistinguishability of their excitation photons, establishing SPP as a viable quantum information carrier and opening a potential route toward photonic-plasmonic quantum circuitry.
ER -