CROSSING Research Seminar: Phase-time coding quantum key distribution in a real-world telecom environment

08.08.2019, 13:00

08.08.2019 13:00-14:00

Speaker: Erik Fitzke, P4, TU Darmstadt | Location: Hochschulstraße 10 (S2|02), Piloty Building, Room B002, Darmstadt

Organizer: Johannes Braun

Quantum Key Distribution (QKD) offers means for cryptographic key exchange. The security of QKD is based on the laws of quantum physics, which enable the detection of eavesdropping. We are working on a time-bin entanglement-based system for multi-partite quantum key distribution. Currently, we test the performance of a preliminary two-party system in a real-world commercial telecommunication environment of Deutsche Telekom.

The QKD protocol we use in order to achieve robust quantum bit transmission will be introduced. The methodology of the implementation will be presented. Recently measured properties of the single photons will be shown. Preliminary transmission results over several kilometers of optical fiber at the Deutsche Telekom testbed will be discussed.

Short bio
Erik Fitzke is a PhD student of Prof. Dr. Thomas Walther at the Institute of Applied Physics. In project P4 he is working on the tests and transfer of the QKD system to a commercial optical fiber network.

We will have lunch (pizza) together after the research seminar talk. Please register here: