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Solitons and vortices in ultracold fermionic gases

T. Karpiuk·M. Brewczyk·K. Rzazewski
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Abstract

We investigate the possibilities of generation of solitons and vortices in a degenerate gas of neutral fermionic atoms. In analogy with, already experimentally demonstrated, technique applied to gaseous Bose-Einstein condensate we propose the phase engineering of a Fermi gas as a practical route to excited states with solitons and vortices. We stress that solitons and vortices appear even in a noninteracting fermionic gas. For solitons, in a system with sufficiently large number of fermions and appropriate trap configuration, the Pauli blocking acts as the interaction between particles.

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T. Karpiuk, M. Brewczyk, K. Rzazewski. 2001-10-22. Solitons and vortices in ultracold fermionic gases. https://doi.org/10.1088/0953-4075%2F35%2F14%2F101

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