Description
The BEC III The BEC3 apparatus is a third-generation machineexperiment, intended to allow for easy manipulation of sodium Bose-Einstein condensates (BEC). These BEC is 's are moved with optical tweezers from the main production chamber into the auxiliary "science chamber." . Once in the science chamber, condensates are loaded into magnetic and optical microtraps for further study. The science chamber affords us provides flexibility in experimental design and the possibility for rapid cycling of experiments without compromising the vaccuum requiredthe vacuum in the main production chamber, which is essential for BEC production.
for condensate production. Here is a description of the apparatus (parts of Ananth Chikkatur's Thesis) (pdf, 1.7 MB) In . In 2007, the appratus experiment was upgraded to have the capability of producing ultracold clouds of both fermionic Lithiumlithium-6 and bosonic sodium-23. This allows us to study various quantum phase phenomena with fermions or Bose-Fermi mixturessmixtures. We are preparing an for optical tweezer transport of fermionic lithium atoms into a our science chamber, which will allow maximum optical access for varius various optical latteice configurationslattice experiments.
Our
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Hardware
BEC3 Main Experiment Table
Our ultracold atoms of sodium and lithium are produced here. They begin as hot gases at >300 degrees Celsius in a dual-species oven. Both types of atoms travel down a Zeeman slower and are captured by overlapping magneto-optical traps (MOT) featuring yellow and red lasers tuned to sodium and lithium transition frequencies respectively.
BEC 3 machine
Brand new science chamber connected to the main chamber
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