Transport of Bose-Einstein Condensates Through Two Dimensional Cavities

By Timo Hartmann

The recent experimental advances in manipulating ultra-cold atoms make it feasible to study coherent transport of Bose-Einstein condensates (BEC) through various mesoscopic structures. In this work the quasi-stationary propagation of BEC matter waves through two dimensional cavities is investigated using numerical simulations within the mean-field approach of the Gross-Pitaevskii equation. The focus is on the interplay between interference effects and the interaction term in the non-linear wave equation. One sees that the transport properties show a complicated behaviour with multi-stability, hysteresis and dynamical instabilities for non-vanishing interaction. Furthermore, the prominent weak localization effect, which is a robust interference effect emerging after taking a configuration average, is reduced and partially inverted for non-vanishing interaction.

• Format: Paperback
• Language: English
• ISBN: 3868451196
• ISBN13: 9783868451191
• Release Date: March 2015
• Publisher: Universitatsverlag Regensburg
• Length: 226 Pages
• Weight: 1.19 lbs.