
Introduction
Spoke 4 aims at developing photon-based quantum technologies within the national Italian context. This research field exploits photons as quantum information carriers. Thus, Spoke 4 activities involve several aspects of fundamental research regarding photonics, such as the interaction between non-classical light and matter in order to design single-photon sources, and new schemes for quantum-light manipulation and detection across a broad range of frequencies (from the visible to the far-infrared). Applications include the whole spectrum of QST applications from quantum communication to the simulation of quantum chemical and physical systems.
Topics and Objectives
The Spoke targets bulk and integrated platforms, employing different materials (e.g., molecules, semiconductor quantum dots, diamonds, ...), different technologies and architectures (e.g., 1D, 2D or heterostructured geometries) with an interdisciplinary approach lying at the interface between quantum optics, (nano) fabrication and photonics.
The main objectives of Spoke 4 are the development of all the required photonic components:
- Sources of photonics quantum states;
- Devices for the manipulation;
- Detectors in the single/multi photon regime;
- Interface with the hardware developed in Spokes 3 and 5.
The activity of this Spoke is in strong synergy with the activities carried out by Spokes 1 and 2 (theory) and by Spokes 6 and 7.
News and events

Quantum: Beltram, NQSTI strumento potente al servizio del Paese
In tre anni raddoppiati gli scienziati coinvolti: oggi sono 635. Assunti 105 giovani ricercatori grazie al PNRR.(AGI) - ...

Quantum for Italy, l’innovazione nascosta delle Piccole e Medie Imprese Italiane
Pubblicato il Report dell’Istituto Nazionale di Scienze e Tecnologie Quantistiche, NQSTI. I centri di ricerca scientific...


Workshop NQSTI: Quantum Highlights for Young Researchers
The workshop, organized in Pozzuoli (Naples) on 28 November 2025 by spoke 9 of NQSTI, aims to foster engaging discussion...

Observation of quantum-correlated twin beams in cascaded nonlinear interactions
In a pioneering experiment in the field of quantum optics, NQSTI researchers observed for the first time quantum-correla...

Conclusion of NQSTI International School: Advances in atomic and photonic quantum technologies
The "NQSTI International School: Advances in atomic and photonic quantum technologies", hosted by the University of Came...

Workshop: Il futuro delle tecnologie quantistiche tra scienza e impresa
Il 20 giugno 2025, il workshop “Il futuro delle tecnologie quantistiche tra scienza e impresa” avrà luogo presso l'aula ...

NQSTI partecipa alla scuola estiva su "Quantum Optics and Quantum Materials"
Tre membri del National Quantum Science and Technology Institute (NQSTI) parteciperanno alla Summer School Quantum Optic...

Quantum Treks a Napoli per IYQ
Un viaggio affascinante tra i sentieri della meccanica quantistica al Centro Musei Scienze Naturali e Fisiche di Napoli....

Verso la definizione di una strategia italiana per le scienze e tecnologie quantistiche
Le scienze e tecnologie quantistiche, già oggetto di una delle tematiche del bando PNRR che ha dato vita al Partenariato...

Quantum machine learning with Adaptive Boson Sampling via post-selection
A new work published in Nature Communications, Quantum machine learning with Adaptive Boson Sampling via post-selection ...

Tecnologie quantistiche: un’opportunità per il futuro
Venerdì 21 febbraio presso la Sala conferenze del Dipartimento di Fisica e Astronomia "Ettore Majorana" dell’Università ...

International School on mid-infrared technologies for quantum sensing - MIRQ
Join the MIRQ Summer School hosted from July 28 to August 1at the Lake Como School of Advanced Studies and dive deep int...


NQSTI partner del progetto ERC-Proof-of-Concept POQUB finanziato dalla Commissione Europea
Il progetto Photonics Quantum Bernoulli Factory (POQUB) è stato finanziato dall’European Research Council nell’ambito de...

Bandi a cascata: Elenco bandi pubblicati
Finanziamenti destinati ad organismi di ricerca pubblici o privati italiani, che non siano già partners del National Qua...

Generation of heralded vector-polarized single photons in remotely controlled topological classes
We created a quantum source of photon pairs with polarization complex structures.The entangle property in the orbital an...

Variational quantum algorithm for experimental photonic multiparameter estimation
In a recent publication appeard on npj Quantum Information scientists from Sapienza University of Rome in a collaboratio...

Strain Engineering of the Electronic States of Silicon-Based Quantum Emitters
In a recent publication appeared on Advanced Optical Materials, scientists from an European collaboration led by prof. F...

Moiré exciton localisation-to-delocalisation transition
The large interest of scientists for 2D crystals regards them not only as standing alone lattices, but also when combine...


Faster, brighter, ever more entangled: how far can we push quantum-dot emitters?
Long from being solely an argument for physical paradoxes, entangled photons are now investigated as a basic resource fo...

How to certify the quantumness of programmable photonic processors
In a recent publication in the journal Science Advances, scientists from Italy and Portugal demonstrate novel techniques...

NQSTI al Q2B-2023 Silicon Valley, Santa Clara (California, US)
NQSTI è stato invitato al Q2B-2023 Silicon Valley per contribuire alla sessione sulle Government Initiatives. Un'importa...

Quantum Technologies Public Policies Report 2023
QuantERA mapped and illustrated developments in the Quantum Technology sector for the second time.The report delivers a ...

NQSTI @NanoInnovation2023
PNRR Quantum Science and Technology initiative NQSTI: opportunities for industrial research and innovationSpeakers: Fabi...

NQSTI all’assemblea di fondazione della Società Italiana di Scienza e Tecnologie Quantistiche
A Trieste, all’interno della 15esima edizione dell' Italian Quantum Information Science Conference (IQIS 2023), NQSTI pr...

New cooperation opportunities: NQSTI meets the U.S. Science Envoy on Quantum Technology
On September 5, NQSTI scientists Fabio Beltram and Fabio Sciarrino met Prof. Narang, U.S. Science Envoy on Quantum Techn...

NQSTI contribution to QuantERA
The QuantERA II ERA-NET Cofund is a consortium of national and regional Research Funding Organisations in Europe financi...

























