Technologies and demonstrators for quantum repeaters, TD.QR, subproject: 3-node entanglement of quantum memories over a 52km telecom fiber connection

At a glance

Project duration
11/2025  – 12/2026
DFG classification of subject areas

Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas

Funded by

Federal Ministry of Research, Technology and Space

Project description

The HUB subproject combines three subprojects. The common goal is to generate and verify entanglement of three quantum storage nodes using entangled photons from a third node. Bridging a distance of 52 km via a fiber test link is a key demonstrator for a quantum repeater in a metropolitan region and future networking of quantum computers. The goals for each subproject are listed below.

Open project website

Cooperation partners

  • Cooperation partner
    UniversityGermany

    Julius Maximilian University of Würzburg

  • Cooperation partner
    UniversityGermany

    Karlsruhe Institute of Technology

  • Cooperation partner
    UniversityGermany

    Paderborn University

  • Cooperation partner
    UniversityGermany

    Saarland University

  • Cooperation partner
    UniversityGermany

    Technical University of Munich

  • Cooperation partner
    UniversityGermany

    University of Stuttgart