QuVeKS – quantum processors for encrypted communication with satellites

INNOspace_Broschuere_2020-2021-1st DLR

Novel quantum technologies of the 21st century promise unconditionally secure communication, exponentially larger computational power as well as compact and more precise sensors. Many of the quantum systems under investigation, however, are application-specific and not compatible with each other. Within the QuVeKS project, a universal quantum processor will be developed at the Friedrich-Schiller-Universität Jena and the CiS Forschungsinstitut für Mikrosensorik. This processor integrates the entire architecture, from the quantum light source to the detectors, into a compact circuit and can be universally programmed just like a computer chip for various applications. The project places a special focus on secure communication with satellites, as the QuVeKS chip can be used as a light source for quantum cryptography during daylight. Moreover, compared to conventional laser-based systems, the data rates can be enhanced drastically. In the long term, end-user devices such as smartphones or computers could also be equipped with such a QuVeKS chip, where it could be used as a secure random number generator or as a sensor.


  • Secure communication based on the laws of nature
  • Higher data rates compared to laser-based systems
  • Flexible use cases through universal programming
  • Future standard component with local supply chain

Institute of Applied Physics,
Friedrich-Schiller-Universität Jena
Dr Tobias Vogl

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