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1D many-body quantum transport of Bose-Einstein condensates : a truncated Wigner approach

Authors
  • Dujardin, Julien
  • Argüelles Parra, Arturo
  • Schlagheck, Peter
Publication Date
Mar 29, 2012
Source
ORBi
Keywords
Language
English
License
Unknown
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Abstract

We calculate the transport properties of an ultracold gas of Bose- Einstein condensed atoms that is coupled from a magnetic trap into a one-dimensional waveguide. A central aim of such guided atom lasers is to study the role of atom-atom interaction in many-body transport processes across finite scattering regions within the waveguide resembling tunnel junctions and quantum dots. Our numerical approach to solve this many-body scattering problem is based on a home-made theory where the boundaries of the system are simulating an open system enabling us to calulate observable in the steady-state regime such as density, current, transmission. The results are compared to the mean-field regime.

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