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Pathway from condensation via fragmentation to fermionization of cold bosonic systems

Ofir E. Alon·Lorenz S. Cederbaum
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Abstract

For small scattering lengths, cold bosonic atoms form a condensate the density profile of which is smooth. With increasing scattering length, the density {\it gradually} acquires more and more oscillations. Finally, the number of oscillations equals the number of bosons and the system becomes {\it fermionized}. On this pathway from condensation to fermionization intriguing phenomena occur, depending on the shape of the trap. These include macroscopic fragmentation and {\it coexistence} of condensed and fermionized parts that are separated in space.

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Ofir E. Alon, Lorenz S. Cederbaum. 2005-02-08. Pathway from condensation via fragmentation to fermionization of cold bosonic systems. https://doi.org/10.1103/physrevlett.95.140402

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