Hannover 2003 – wissenschaftliches Programm

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Q: Quantenoptik

Q 27: Poster: Quantengase

Q 27.2: Poster

Dienstag, 25. März 2003, 16:30–18:30, Lichthof

Numerical simulations of Bose Einstein condensate with laser-induced gravity — •Matt Kalinski¹, G. Kurizki², K. Vogel¹, and W. P. Schleich¹ — ¹Abteilung für Quantenphysik, Universität Ulm, Ulm Germany — ²Department of Chemical Physics, The Weizmann Institute of Science, Rehovot, Israel

Surprisingly the combination of few laser beams may generate an attractive long-range interaction within the Bose-Einstein condestate due to the interplay between dipole-dipole forces [1]. This is equivalent to gravity forces with an enormously large modeled gravitational constant. We solve the complete 3-dimensional Gross-Pitaevskii equation describing the system. Nondispersing structures of the condensate are observed numerically without the external trap for soft-core model potentials as quantum pressures are balanced by the self-interaction.

[1] D. O’Dell, S Giovanazzi, G. Kurizki, and V. M. Akulin, Phys. Rev. Lett. 84, 5688 (2000).