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Walther-Meißner-Institut (WMI), Bayerische Akademie der Wissenschaften
Chair for Technical Physics (E23), Technische Universität München

DFG grants new Collaborative Research Center 631 on
"Solid state based quantum information processing: physical concepts and materials aspects"


July 01, 2003

SFB 631
July 01, 2003

Collaborative Research Center 631 "Solid State Based Quantum Information Processing: Physical Concepts and Materials Aspects"

The Sonderforschungsbereich 631 (Collaborative Research Centre 631) was installed by the Deutsche Forschungsgemeinschaft (German Science Foundation) effective in July 1, 2003. Within 15 projects research groups from the Bavarian Academy of Sciences, the Technical University of Munich, the Ludwig-Maximilians-University, the Max-Planck-Institute for Quantum Optics, as well as the University of Regensburg and the University of Augsburg are collaborating. In addition to 30 senior scientists, more than 30 PhD and diploma students as well as a large number of guests are involved in the research activities.

The research activities within the SFB 631 are directed towards the interdisciplinary research field of Solid State Based Quantum Information Processing, which is involving ideas and concepts from information theory, physics, mathematics and materials science. This research initiative is aimed at the basic understanding of the fascinating physics as well as the materials and technological aspects of solid state based quantum information processing. The key questions to be attacked withing SFB 631 are:

  • How can we realize solid state based quantum bits with sufficiently large quantum coherence by using?
  • How can we control, manipulate, couple and effectively read out these phase coherent quantum states?
  • How can we scale individual solid state based quantum bits to more complex systems?
  • Which concepts can we employ to reduce decoherence?
  • Which degrees of freedom in solid state systems are most suitable for the implementation of solid state based quantum bits?
  • How can we solve the materials issues and technological problems showing up in the realization of solid state based quantum bits?
  • How can we establish an interface between solid state based qubits and quantum communication systems?

To answer these question research activities in the fields of quantum information theory, experimental and theoretical solid state physics, quantum optics, materials science and nanotechnology are coordinated. The long-term goal of the coordinated research within SFB 631 is to develop a deep understanding of physical concepts of solid state based quantum information processing and to establish the materials and technology basis for a successful implementation of solid state based quantum bits. In this way we can approach the vision of realizing a useful quantum information system including quantum computing and quantum communication.

What is a Collaborative Research Center?

Collaborative Research Centres are long-term university research centres in which scientists and researchers work together within a cross-disciplinary research programme. They are installed by the German Science Foundation with the purpose to create core research areas at universities by establishing temporary centres of excellence, to promote interdisciplinary cooperation and to advance young researchers. As a rule the funding duration is up to 12 years with a single funding period running for four years. Funding includes staff funding (including the head of an independent Junior Research Group), funding for scientific instrumentation, consumables, travel, publication allowance, funding for colloquia and visiting researchers.

More information can be found at the SFB 631 Homepage.

Contact: Rudolf.Gross@wmi.badw.de
SFB631 (jpg, 12k)