Photonics integration is a key technology for realizing large-scale photonic quantum information processing. Here, we demonstrate the largest reconfigurable photonic processor based on low-loss silicon nitride waveguide networks for InGaAs quantum dots to date. The 20-mode processor is used for quantum information processing with demultiplexed single photons from a quantum dots source which are detected at the output using single photon detectors. In this talk, we will present the newest results of the system using our programmable quantum photonic processors. Furthermore, we show the challenges of scaling up quantum photonic computers and the range of potential applications and use cases.
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