Welcome
Ultracold thermal and quantum degenerate gases are truly quantum objects and therefore ideal candidates for quantum control. The techniques of coherent control which make use of quantum interferences are being introduced to this field only now.Our group investigates theoretically possibilities to actively control ultracold systems with short, shaped laser pulses. Both coherent control schemes and optimal control theory are utilized. Our research interests include
- Photoassociation of molecules from ultracold atoms.
More information...
Emphasis is placed on a realistic treatment of the molecular interactions to allow for comparison with on-going experiments. - Strategies for vibrational cooling. More information...
- Quantum computing with ultracold atoms in an optical lattice using shaped laser pulses. More information...
- Multiphoton processes & ultracold molecules: Control of light emission (within SFB 450). More information...
A second line of research is devoted to developing methods which allow
for a better
comparability of optimal control theory and experiments.
The high efficiency of theoretical
optimal pulses comes at the expense of
spectrally broad and very complex pulses.
A new time-frequency approach to optimal
control theory shall be developed to allow for
the incorporation of experimental constraints such as the
pulse spectral bandwidth and time profile.
Events
- Department colloquium, May 29, 2009, 3:15 pm, given by
Ulrich Hohenester, U Graz, on
Optimal Quantum Control of Bose-Einstein condensates in magnetic microtraps - Department colloquium, June 27, 2008, 3:15 pm, given by
Tommaso
Calarco, U Ulm, on
Optimal Control Theory and Quantum Information Systems - Conference on ultrafast-ultracold processes, Ein Gedi, Israel, February 24-29, 2008 (website includes slides of presentations)