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HL: Fachverband Halbleiterphysik

HL 47: Focus Session: Quantum Technologies in Deployed Systems II

HL 47.3: Hauptvortrag

Donnerstag, 20. März 2025, 10:30–11:00, H17

Quantum dot based quantum communication in urban networks — •Rinaldo Trotta — Sapienza University of Rome, Italy

The last two decades have witnessed an impressive progress in the development of single and entangled photon sources based on quantum dots. It has now arrived the moment to explore their full potential in urban quantum-communication scenarios.

In this talk, I will first discuss how single and entangled photons generated by quantum dots can be used to implement advanced quantum communication protocols in a controlled laboratory environment. Then, I will show our efforts towards the construction of a hybrid quantum network, harnessing both fibre and free-space links, within the University campus in the centre of Rome. Finally, I will present field demonstrations of point-to-point entanglement-based quantum key distribution and three-node quantum teleportation with dissimilar quantum dots. A discussion on future challenges and perspectives will conclude the talk.

Keywords: Quantum Dots; Quantum communication; Entangled photons