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BEC emerges from the desert

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First observation: BEC!

Group: Anderson

Authors and contributors: David Scherer, Chad Weiler, Tyler Neely, and Brian P. Anderson

Figure 1: In-trap phase-contrast images and false-color plots of Rb-87 atoms undergoing Bose-Einstein condensation in a ~7.4 Hz (radial) by ~14.1 Hz (axial) TOP trap. Atom number in the BEC image is ~106.

  • Atom: Rb87, |F=1, mF = -1>
  • Trap: standard TOP trap (dB/dz=300G/cm, Bbias_final=5G)
  • Method: 2 chamber, magnetic transfer from MOT cell to science cell
  • Evaporative cooling: 60 seconds, RF + circle-of-death forced evaporation
  • Condensate atom number: ~105 atoms on first observation, optimized to 10^6
  • Critical temperature: ~200 nK on first observation

Figure 2: The UA BEC team. Seated in front, L-to-R: Tyler Neely, Chad Weiler. Standing, L-to-R: David Scherer, Brian Anderson.

Posted: 07 Jul 2006     Date: 23 Sep 2005

Vortex lattice

Updated: 07 Jul 2006

Hexagonal lattice of vortex cores in a BEC, observed with absorption imaging and ballistic expansion. Created by first forming the BEC in a weak symmetric TOP trap, then by rotating an elliptical potential about the condensate. 23 Jun 2006

Chaotic paths to cold atom physics
10 Feb 2018
Jagiellonian University, Krakow, Poland
Quantum Optics 2018
25 Feb 2018
Obergurgl, Austria

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