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Inline detection and reconstruction of multiphoton quantum states

Wang, Kai; Suchkov, Sergey; Titchener, James; Szameit, A.; Sukhorukov, Andrey


Integrated single-photon detectors open new possibilities for monitoring inside quantum photonic circuits. We present a concept for the inline measurement of spatially encoded multiphoton quantum states, while keeping the transmitted ones undisturbed. We theoretically establish that by recording photon correlations from optimally positioned detectors on top of coupled waveguides with detuned propagation constants, one can perform robust reconstruction of the 𝑁-photon density matrix describing...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
Source: Optica
DOI: 10.1364/OPTICA.6.000041
Access Rights: Open Access


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