Vortrag: Towards Comprehensive Control of Atomic and Molecular Motion, 29.6.2009, 17:30 Uhr

29 Jun 2009 by in Studium

Im Rahmen des Wiener physikalischen Kolloquiums hält Marc G. Raizen von der University of Texas at Austin einen Vortrag mit dem Titel "Towards Comprehensive Control of Atomic and Molecular Motion".

Der Vortrag findet am Montag, 29.06.2009 um 17:30 Uhr im Lise Meitner Hörsaal (Großer Hörsaal für Experimentalphysik) der Fakultät für Physik der Universität Wien (Strudlhofgasse 4, 1. Stock, 1090 Wien) statt.

Zusammenfassung:

The method of laser cooling has opened the door to low temperature physics of dilute gases. Despite the great success of this method, it has been limited to a very small set of atoms in the periodic table and no molecules. I will describe in this talk new approaches to trapping and cooling that have been developed in my group. The first step uses pulsed magnetic fields to stop atoms and molecules where they can be magnetically trapped. The next step is an experimental realization of informational cooling as first proposed by Leo Szilard in 1929 in an effort to resolve the paradox of Maxwell's demon. Together, these provide a two-step comprehensive solution to trapping and cooling.
I will describe our progress in applying these new methods to trapping and cooling of hydrogen isotopes. In the short term, we are working to trap hydrogen and deuterium, which will serve as a step towards trapping of atomic tritium. This system will be used for precision measurement of beta decay towards determination of the neutrino rest mass. Our methods are also very applicable to trapping and cooling of anti-hydrogen, and a collaboration at an accelerator laboratory is being pursued.

Weitere Informationen finden sich unter: http://www.univie.ac.at/WPK/WPK2009-06-29.htm

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This topic: News > BlogPost > 2009-06-29_Vortrag_Towards_Comprehensive_Control_of_Atomic_and_Molecular_Motion_29_6_2009_1730_Uhr
Topic revision: 29 Jun 2009, waliddPHYSIKFHTUFAT
 
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