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Dynamics of optically generated vortices in a one-component ultracold fermionic gases

Tomasz Karpiuk·Miroslaw Brewczyk·Kazimierz Rzazewski
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Abstract

We show that the phase imprinting method is capable of generating vortices in a one-component gas of neutral fermionic atoms at zero and finite temperatures. We find qualitative differences in dynamics of vortices in comparision with the case of Bose-Einstein condensate. The results of the imprinting strongly depend on the geometry of the trap, e.g., in asymmetric traps no single vortex state exists. The observations could be considered as a signature of Cooper-pair based superfluidity in a Fermi gas.

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Tomasz Karpiuk, Miroslaw Brewczyk, Kazimierz Rzazewski. 2002-06-25. Dynamics of optically generated vortices in a one-component ultracold fermionic gases. https://doi.org/10.1088/0953-4075%2F36%2F3%2F102

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