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Swinburne researchers produce isolated 2D Fermi gas
April, 2011
Researchers at Swinburne’s Centre for Atom-Optics
and Ultrafast Spectroscopy have recently succeeded in producing a two-dimensional
Fermi gas of ultracold atoms. The experiments were performed by the ultracold
Fermi gas group and are the first in the world to produce an isolated 2D cloud of
fermions. This was used to study the crossover from two to three dimensions
and revealed the characteristic shell-structure in the cloud density profiles, a
key signature of the crossover which arises due to the occupation of discrete
transverse quantum states. This work opens the way towards studies of highly
correlated 2D systems of fermions where pairing and superfluidity are predicted
to behave very differently from conventional 3D systems.
The work has been published in Physical Review Letters.
Link to paper: P. Dyke et al.,
Phys. Rev. Lett. 106, 105304 (2011)
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