Transport, atom blockade and output coupling in a Tonks-Girardeau gas

L. Rutherford, J. Goold, Th. Busch, J. F. McCann

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8 Citations (Scopus)
251 Downloads (Pure)


Recent landmark experiments have demonstrated how quantum mechanical impurities can be created within strongly correlated quantum gases and used to probe the coherence properties of these systems. Here we present a theoretical model to simulate such an output coupler for a Tonks- Girardeau gas that shows excellent agreement with the experimental results for atom transport and output coupling. The solid theoretical basis our model provides allows us to explore non-equilibrium transport phenomena in ultra-cold quantum gases and leads us to predict a regime of atom blockade, where the impurity component becomes localised in the parent cloud despite the presence of gravity. We show that this provides a stable mixed-species quantum gas in the strongly correlated limit.
Original languageEnglish
Article number055601
Number of pages4
JournalPhysical Review A
Issue number5
Publication statusPublished - 31 May 2011

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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