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Q: Quantenoptik und Photonik

Q 75: Kurzvorträge zum Symposium Mesoskopische Physik ultrakalter Atome (SYUA)

Q 75.1: Talk

Wednesday, March 9, 2005, 16:00–16:15, HU Audimax

Coherent control of mesoscopic tunneling — •C. Weiss and T. Jinasundera — Institut für Physik, Carl von Ossietzky Universität, 26111 Oldenburg, Germany

For a weakly interacting Bose-Einstein condensate in a double well, an appropriate time-dependent modulation of the trapping potential can effectively switch off the interaction among the particles. It is demonstrated numerically that this effect can be employed for transferring the condensate from one well to the other in a controlled way. Moreover it allows the production of non-classical Schrödinger cat-like states on short time scales.