NUIM Math. Physics seminar

Andreas Ruschhaupt

Shortcuts to Adiabaticity and their Stability

Friday 1 Mar at 14.00

Hall C, Arts Building, North Campus

We present new methods to speed-up manipulations of cold atoms in a harmonic trap: a shortcut to adiabatic expansion of the trap and a shortcut to adiabatic transport of the trap. In both cases, the final atomic state is the same as in the adiabatic process, but the state is achieved with fidelity one in arbitrarily short time, keeping the same populations of vibrational levels in the initial and final trap. These methods can also be generalized to condensates and we are examining their stability concerning different types of errors like noise errors and systematic errors. Moreover, we present shortcuts to adiabatic passage from one internal atomic state to another. Again we especially examine and compare the stability of different schemes concerning different types of errors.

All are welcome. Tea/coffee and biscuits to follow. For directions to the Dept. please check http://www.thphys.nuim.ie/map.php