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SFB 407:  Quantum limited measuring processes with atoms, Molecules and photons

Subject Area Physics
Term from 1997 to 2009
Project identifier Deutsche Forschungsgemeinschaft (DFG) - Project number 5481797
 
The knowledge of the quantum behavior of fields as well as matter has significantly altered our understanding of the physical world since the start of the last century. Since then, the techniques available to perform physical measurements have been significantly improved and extended. Specifically in recent years, the development of methods to cool, trap and manipulate dilute atomic gases has allowed to attack new fields of research which are dominated by the wave properties of atomic matter. In combination with the most advanced experimental techniques in atomic and molecular interferometry as well as atomic and molecular optics, this opens new perspectives for realizing new measurement principles which are only limited by the fundamental principles of the measurement process itself and not by technical issues. In a complementing fashion, quantum behavior also defines the limits of optical measurements, especially the limitations and the perspectives of modern gravitational wave detectors. The Department of Physics at the University of Hannover together with related departments at the Physikalisch-Technische Bundesanstalt (PTB) in Braunschweig and the Lasercenter Hannover (LZH) investigate new means to examine the multitude of aspects given by the quantum nature of physical systems and develop new methods for their implementation in future measurement principles and their application. New methodical approaches will be developed and applied as well as existing ones extended to their quantum limit. It is the goal to gain a comprehensive understanding of quantum limitations and to investigate them in view of future applications.
DFG Programme Collaborative Research Centres

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