@inproceedings{563a8f19841a49039098284ea4b68e4d,
title = "Inline multiphoton quantum state tomography",
abstract = "Latest advances in integrated single-photon detectors offer possibilities for gaining information inside quantum photonic circuits. We introduce a concept and provide experimental evidence for the inline tomographic mea-surement of multiphoton quantum states, while keeping the transmitted ones undisturbed. We establish that by recording photon correlations from optimally positioned detectors on top of coupled waveguides with de-tuned propagation constants, one can perform robust reconstruction of multiphoton density matrices describing the amplitude, phase, coherence and quantum entanglement. We report proof-of-principle experiments. Our method opens a pathway towards practical and fast inline state tomography for diverse applications in quantum photonics.",
keywords = "Integrated single photon detector, Photonic circuits, Quantum photonics, Quantum state tomography",
author = "Kai Wang and Suchkov, {Sergey V.} and Titchener, {James G.} and Alexander Szameit and Sukhorukov, {Andrey A.}",
note = "Publisher Copyright: {\textcopyright} COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.; AOS Australian Conference on Optical Fibre Technology, ACOFT 2019 and Australian Conference on Optics, Lasers, and Spectroscopy, ACOLS 2019 ; Conference date: 09-12-2019 Through 12-12-2019",
year = "2019",
doi = "10.1117/12.2539146",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Arnan Mitchell and Halina Rubinsztein-Dunlop",
booktitle = "AOS Australian Conference on Optical Fibre Technology, ACOFT 2019 and Australian Conference on Optics, Lasers, and Spectroscopy, ACOLS 2019",
address = "United States",
}