Quantum Key Hubs (P04)

• Subject Area: Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas
• Term: since 2014
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 236615297

Quantum key distribution (QKD) networks ideally deliver information-theoretic security based on the laws of quantum mechanics. The overall goal of the project is to take the four-party-network established in Phase II and extend it by spatially separating the parties to prototype a functional city-wide QKD network. The project further develops a second-generation quantum hub based on a photonic chip and spontaneous four-wave mixing, potentially enabling cost-efficient and robust photon sources in the future. Another aim is the establishment of adequate physical models for the most relevant side-channels attacks.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1119: CROSSING - Cryptography-Based Security Solutions: Enabling Trust in New and Next Generation Computing Environments
• Major Instrumentation: Photonic Chips
• Applicant Institution: Technische Universität Darmstadt
• Project Heads: Professor Dr. Gernot Alber; Professor Dr. Thomas Walther