Direct Detection of Quantum Phase Errors in Spatially Multiplexed Transmission Channels
Kai Wang, Falk X. Eilenberger, Alexander Szameit, Andrey A. Sukhorukov · ANU Open Research (Australian National University) · 2019
We introduce a protocol for direct detection of arbitrary continuous phase errors in transmission of multi-photon spatially entangled quantum states, and present a design and experimental evidence for its realization in an integrated photonic circuit.