Due to the large number of projects and international research projects, the following overview can only represent a selection of initiatives in this rapidly growing technology area.
German initiatives and projects
QuNet: FhG (Heinrich-Hertz-Institut, Berlin), DLR (Oberpfaffenhofen), MPG (Max-Planck-Institut für die Physik des Lichts, Erlangen).
The goal of this project is to build and develop a quantum network that ensures tamper- and eavesdrop-proof data transmission between federal agencies.
GeQCoS: Walther-Meißner-Institute (BAdW), FZ Jülich, Infineon, KIT-Karlsruhe, Universität Erlangen-Nürnberg, TU München, Fraunhofer Institut für Angewandte Festkörperphysik (IAF).
The greatest challenge in the realization of quantum computers is to generate stable qubits. The joint project GEQCOS pursues the goal of implementing qubits based on superconductors.
Quasar: FZ Jülich, Infinion, Einrichtungen der FhG (IAF, IPMS), Leibniz Gemeinschaft (IHP, IKZ), die Universitäten Regensburg und Konstanz, HQS Quantum Simulations GmbH
The aim of the project is to implement and demonstrate a microarchitecture without geometric scaling limits, which is based on so-called spin qubits. The qubits are based on semiconductor technology and have the advantage over superconducting qubits that they can also be used at higher temperatures.
DAQC: IQM Germany GmbH, FZ Jülich, Infineon, LRZ , FU Berlin, Parity Quantum Computers.
The project aims to create and operate a digital-analog quantum computer (DAQC). Embedded in a high-performance environment, the quantum processor is intended to reduce computing time, thereby demonstrating the superiority of such processors.
European initiatives and projects
FLAGSHIP: Quantum Flagship Program
The Quantum Flagship consists of 24 projects dealing with different sub-areas of quantum technology, such as simulation, computing and communication. The goal of this European project is to develop a scientific basis throughout Europe in this research area. The project also aims to create a competitive industry for quantum technologies. Europe is to become a center for innovative research, business and investment.
EuroQCI : European Quantum Communication Infrastructure
Founded by 9 EU member states in 2019, this initiative aims to develop new cryptographic methods to protect critical communication structures. To this end, new quantum cryptographic and secure quantum products and systems are to be embedded in conventional communication networks. There are now 25 countries (including Germany) involved in this program.
International initiatives and projects
Caltech und Fermilab: California Institute of Technology und Fermi National Accelerator Laboratory
For the quantum internet, the so-called quantum teleportation is essential. Two testbeds were equipped with the latest quantum devices to perform the most accurate teleportation of quantum information over a distance of 44km.