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Articles by Daniele Bajoni
Fully integrated quantum frequency processor on a silicon chip
Abstract Frequency-bin encoding has recently emerged as a powerful approach for photonic quantum information processing, offering high dimensionality, gate-parallelization, and compatibility with existing telecommunication infrastructure. However, its scalable deployment has so far been hindered by the lack of an integrated platform capable of unifying quantum state generation, coherent frequency mixing, and programmable spectral control.
Gigahertz-rate thin-film lithium niobate receiver for time-bin quantum communication
Abstract Time-bin encoded quantum states of light are crucial for quantum technology applications. The integration of manipulation functionalities into chip-scale devices is essential for deploying scalable, high-performace, and cost-effective quantum networks. Here we develop a fully integrated, high-throughput quantum receiver based on the thin-film lithium niobate (TFLN) platform, capable of high-speed electro-optic manipulation of time-bin encoded quantum states.
Time-resolved certification of frequency-bin entanglement over multi-mode channels - npj Quantum Information
Abstract Frequency-bin entangled photons can be efficiently produced on-chip which offers a scalable, robust and low-footprint platform for quantum communication, particularly well-suited for resource-constrained settings such as mobile or satellite-based systems. However, analyzing such entangled states typically requires active and lossy components, limiting scalability and multi-mode compatibility.
Uncorrelated photon pair generation from an integrated silicon nitride resonator measured by time-resolved coincidence detection
We measure the joint temporal intensity of signal and idler photon pairs generated by spontaneous four-wave mixing in a silicon nitride microresonator by time-resolved coincidence detection. This technique can be applied to any high-Q optical cavity whose photon lifetime exceeds the duration of the pump pulse.
A step beyond in steady-state and time-resolved electro-optical spectroscopy: Demonstration of a customized simple, compact, low-cost, fiber-based interferometer system
Electro-optical spectroscopy is nowadays a routine approach for the analysis of light induced properties and dynamical processes in matter, whose understanding is particularly crucial for the intelligent design of novel synthetic materials and the engineering and optimization of high-impact optoelectronic devices.
Electrically driven source of time-energy entangled photons based on a self-pumped silicon microring resonator
Francesco Garrisi, Federico Andrea Sabattoli, Savda Sam, Andrea Barone, Micol Previde Massara, Federico Pirzio, Francesco Morichetti, Andrea Melloni, Marco Liscidini, Matteo Galli, and Daniele Bajoni Author Affiliations Francesco Garrisi,1,* Federico Andrea Sabattoli,1 Savda Sam,2 Andrea Barone,1 Micol Previde Massara,3 Federico Pirzio,2 Francesco Morichetti,4 Andrea Melloni,4 Marco Liscidini,1 Matteo Galli,1 and Daniele Bajoni2 1Dipartimento di Fisica, Università di Pavia, 27100 Pavia,...
An artificial neuron implemented on an actual quantum processor
Abstract Artificial neural networks are the heart of machine learning algorithms and artificial intelligence. Historically, the simplest implementation of an artificial neuron traces back to the classical Rosenblatt’s “perceptron”, but its long term practical applications may be hindered by the fast scaling up of computational complexity, especially relevant for the training of multilayered perceptron networks.
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