Quantum communication and quantum networks
Towards the quantum internet
Connecting quantum devices to exploit their full potential is the next step in establishing useful applications of quantum technologies and making them accessible to a wide audience. Building such a quantum internet requires the development of new protocols, for example for entanglement distillation, certification and distribution of quantum states. We approach these issues not only from a fundamental perspective, but also consider practical limitations - such as decoherence, noise and imperfections - and analyze both their effects and ways to minimize them.
Our research interests include:
- Entanglement-based quantum networks: we develop concepts and protocols for quantum networks that use entanglement as a central resource and investigate their properties.
- Quantum sensor networks: We investigate distributed sensor networks that use entanglement for more precise measurement and reduction of noise, and optimize their properties across scales - from single ion traps to global networks.
- Measurement-based quantum computations: We investigate computational approaches with multipartite entangled resource states and focus on high-dimensional systems, resource-efficient protocols, and error-limiting strategies.
Wolfgang Dür
Professor of Theoretical Physics
PhD 2001, University of Innsbruck, Austria
Group page | Homepage
Affiliations
Institute for Theoretical Physics, University of Innsbruck
W. Dür is co-founder of the concept of the quantum repeater, a central tool for the realization of communication over long distances. He has made significant contributions to the development of quantum communication for over 25 years and is particularly known for the introduction of W-states. His scientific work on this topic was honored as one of the “Physical Review A 50th Anniversary Milestones” papers. In addition, he has significantly advanced quantum information theory through his research in areas such as measurement-based quantum computation, multipartite entanglement, macroscopicity and quantum metrology. His interests also include physics education, in particular innovative approaches to teaching quantum physics in secondary schools. He uses visualizations and games to make complex concepts understandable and accessible.