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Welcome to the "Fermionic Quantum Gases" project.
We are part of the group of Prof. T. W. Hänsch. The group is affiliated with the Max-Planck Institute of Quantum Optics and the Department of Physics of the Ludwig-Maximilians-University of Munich.
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News: |
Janary, 2009:
Science Editors Choice (Science, 323, (2009), p563)
picks our recent PRL.
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Janary, 2009:
Online article in Pro-Physik on our recent PRL:
Ultrakalte Moleküle aus ungleichen Fermi-Atomen
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Janary, 2009:
Article on heteronuclear molecules published:
Ultracold Heteronuclear Fermi-Fermi Molecules
A.-C. Voigt, M. Taglieber, L. Costa, T. Aoki, W. Wieser, T. W. Hänsch, and K. Dieckmann
Phys. Rev. Lett. 102, 020405, (2009)
We report on the first creation of ultracold bosonic heteronuclear molecules of two fermionic species, 6-Li and 40-K, by a magnetic field sweep across an interspecies s-wave Feshbach resonance. This allows us to associate up to 4×10^4 molecules with high efficiencies of up to 50%. Using direct imaging of the molecules, we measure increased lifetimes of the molecules close to resonance of more than 100ms in the molecule-atom mixture stored in a harmonic trap.
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Direct simultaneous absorption imaging of the
molecular and atomic cloud after separation by a Stern-Gerlach force during time of flight (TOF). (b) Energies of molecular states (solid lines) and free atoms (dashed line):
The molecular state has almost vanishing magnetic moment at the Feshbach resonance (encircled region).
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October, 2008:
Our workshop "Strong Correlations in Multiflavor Ultracold Quantum Gases" went by. Thanks to everybody for contributing to the organization and the great talks that turned this workshop into a success! See you next year in Hamburg.
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April 15th, 2008:
Congratulations to Matthias Taglieber, who obtained his "Dr." degree.
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March, 2008:
Postdoc Takatoshi Aoki is leaving the group to take a position in Tokyo.
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January, 2008:
Article available online:
M. Taglieber, A.-C. Voigt, T. Aoki, T. W. Hänsch, and K. Dieckmann
We report on the generation of a quantum degenerate Fermi-Fermi mixture of two different atomic species. The quantum degenerate mixture is realized employing sympathetic cooling of fermionic 6-Li and 40-K gases by a...
[Phys. Rev. Lett. 100, 010401 ] Published Fri Jan 4, 2008
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Time of flight absorption images of the quantum degenerate Fermi-Fermi-Bose mixture. Shown are the optical column densities (left) and projections of the optical column densities (right) along with corresponding fits (lines). The projections are taken along the symmetry axis of the trap for the fermionic species and along the radial axis for rubidium. Expansion times are 15 ms, 4 ms, and 20 ms for potassium, lithium and rubidium, respectively. The first triple-degenerate mixtures were obtained in April, 2007.
Read more about our research... |
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December, 2007:
In collaboration with W. Zwerger from the Technical University of Munich we will organize the workshop:
"Strong Correlations in Multiflavor Ultracold Quantum Gases"
Workshop of the DFG Research Unit FOR 801
October 1-2, 2008
International Center for Science and Humanities at theLudwig-Maximilians-University of Munich
Munich, Germany
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We have open positions !
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