Anomalous quantum reflection of Bose-Einstein condensates from a silicon surface: the role of dynamical excitations

Details Anomalous quantum reflection of Bose-Einstein condensates from a silicon surface: the role of dynamical excitations Anomalous quantum reflection of Bose-Einstein condensates from a silicon surface: the role of dynamical excitations

2004-12-15

arxiv.org/abs/cond-mat/0412380v3

Phys. Rev. Lett., 95, 073201 (2005)

Physics

Condensed Matter

Other Condensed Matter

5 figures, 5 pages, references corrected

Scientific paper

10.1103/PhysRevLett.95.073201

We investigate the effect of inter-atomic interactions on the quantum-mechanical reflection of Bose-Einstein condensates from regions of rapid potential variation. The reflection process depends critically on the density and incident velocity of the condensate. For low densities and high velocities, the atom cloud has almost the same form before and after reflection. Conversely, at high densities and low velocities, the reflection process generates solitons and vortex rings that fragment the condensate. We show that this fragmentation can explain the anomalously low reflection probabilities recently measured for low-velocity condensates incident on a silicon surface.

Affiliated with

Also associated with

No associations

Rating

Anomalous quantum reflection of Bose-Einstein condensates from a silicon surface: the role of dynamical excitations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Anomalous quantum reflection of Bose-Einstein condensates from a silicon surface: the role of dynamical excitations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anomalous quantum reflection of Bose-Einstein condensates from a silicon surface: the role of dynamical excitations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-92154