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quant-ph2026
Distributed Phase Sensing with Multiphoton States in Optical Interferometry
Subhrajit Modak, Danilo Triggiani, Cosmo Lupo
We investigate interferometric phase-estimation using separable photon inputs that evolve into number-path entangled states through linear optical networks, followed by photon-numb…
quant-ph2026
Experimental subdiffraction source discrimination enabled by spatial demultiplexing and single-photon detectors
Luigi Santamaria Amato, Danilo Triggiani, Cosmo Lupo
We experimentally demonstrate a universal, parameter-independent test for asymmetric source discrimination below the diffraction limit. The test exploits spatial-mode demultiplexin…