Skip to content

UltraCold Atom News

Sections
Personal tools
Home » News » BEC in Old Heidelberg

BEC in Old Heidelberg

Back to News

Group: Schmiedmayer

Authors and contributors: Alexander Kasper, Stephan Schneider, Christoph vom Hagen, Louw Feenstra, Joerg Schmiedmayer.

[Historical report created from GSU BEC Homepage:]

"On the 13th of May we have successfully achieved Bose Einstein condensation of 87Rb in a magnetic Z-trap. We trap the |F = 2, MF = 2> magnetic substate in a Ioffe Pritchard type magnetic microtrap (the Z-trap). We start our evaporative cooling cycle with ~ 108 atoms and find ~ 3 x 105 atoms in the condensate. The magnetic trap frequencies are: Transversal: 2π x 600 Hz, Longitudinal: 2π x 60Hz . The picture above shows how the condensate emerges from the thermal background as we decrease the temperature.

Comment to the picture below of the chip mounting: The monolithic wire structure (Z), which supplies partially the magnetic field for the Ioffe trap is below the gold surface. The gold surface is actually a set of additional smaller micro traps, also called "AtomChip".

Members of the group:

  • Alexander Kasper
  • Stephan Schneider
  • Christoph vom Hagen
  • Louw Feenstra
  • Joerg Schmiedmayer

We also acknowledge help from:

  • Markus Bartenstein
  • Thorsten Schumm
  • Bastian Engeser

For further information, see http://www.physi.uni-heidelberg.de/physi/atph/."

Posted: 11 Aug 2005     Date: 13 May 2002



© 2005-2017
Contact us | About the site | Link to the site