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Max-Planck-Institut für Quantenoptik

Hans-Kopfermann-Str. 1
85748 Garching bei München
Germany
Tel.
+498932905-0
Fax
+498932905-200

www.mpq.mpg.de

Short description

Research at the Max Planck Institute of Quantum Optics concentrates on the interaction of light and matter under extreme conditions. One focus is the high-precision spectroscopy of hydrogen. In the course of these measurements Prof. Theodor W. Hänsch developed the frequency comb technique for which he was awarded the Nobel Prize for Physics in 2005. Other experiments aim at capturing single atoms and photons and letting them interact in a controlled way, thus paving the way towards future quantum computers. Theorists on the other hand are working on strategies to communicate quantum information in a most efficient way. They develop algorithms that allow the safe encryption of secret information. MPQ scientists also investigate the bizarre properties quantum-mechanical many-body systems can take on at extremely low temperatures (about one millionth Kelvin above zero). Finally light flashes with the incredibly short duration of several attoseconds (1 as is a billionth of a billionth of a second) are generated which make it possible, for example, to observe quantum-mechanical processes in atoms such as the 'tunnelling' of electrons or atomic transitions in real time.

More about MPI für Quantenoptik
  • News

    Light-driven molecular swing

    When light impinges on molecules, it is absorbed and re-emitted. Advances in ultrafast laser technology have steadily improved the level of detail in studies of such light-matter interactions. FRS, a laser spectroscopy method in which the electric field of laser pulses repeating millions of ... more

    Pumping up the music of molecules

    Sensitive animal noses can sniff out trace particles, such as volatile organic compounds, in the ambient air. Humans, on the other hand, are developing innovative technologies for this purpose, such as optical spectroscopy. This uses laser light to detect the molecular composition of gases. ... more

    A nanokelvin microwave refrigerator for molecules

    Researchers at the Max Planck Institute of Quantum Optics have developed a novel cooling technique for molecular gases that allows polar molecules to be cooled down to a few nanokelvin. The trick used by the team in Garching to overcome this hurdle is based on a rotating microwave field. It ... more

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