Frankfurt 2006 – scientific programme

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Q: Quantenoptik und Photonik

Q 26: Fallen und Kühlung I

Q 26.1: Talk

Tuesday, March 14, 2006, 14:00–14:15, HII

Analog of photon-assisted tunneling in a Bose-Einstein condensate — •Christoph Weiss, Andre Eckardt, Tharanga Jinasundera, and Martin Holthaus — Institut für Physik, Carl von Ossietzky Universität, D-26111 Oldenburg, Germany

We study many-body tunneling of a small Bose-Einstein condensate in a periodically modulated, tilted double-well potential. Periodic modulation of the trapping potential leads to an analog of photon-assisted tunneling, with distinct signatures of the interparticle interaction visible in the amount of particles transferred from one well to the other. In particular, under experimentally accessible conditions there exist well-developed half-integer Shapiro-like resonances.

[1] A. Eckardt, T. Jinasundera, C. Weiss and M. Holthaus, Phys. Rev. Lett. 95, 200401 (2005).