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Boson-fermion mixtures inside an elongated cigar-shaped trap

Z. Akdeniz·P. Vignolo·M. P. Tosi
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Abstract

We present mean-field calculations of the equilibrium state in a gaseous mixture of bosonic and spin-polarized fermionic atoms with repulsive or attractive interspecies interactions, confined inside a cigar-shaped trap under conditions such that the radial thickness of the two atomic clouds is approaching the magnitude of the s-wave scattering lengths. In this regime the kinetic pressure of the fermionic component is dominant. Full demixing under repulsive boson-fermion interactions can occur only when the number of fermions in the trap is below a threshold, and collapse under attractive interactions is suppressed within the range of validity of the mean-field model. Specific numerical illustrations are given for values of system parameters obtaining in 7Li-6Li clouds.

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Z. Akdeniz, P. Vignolo, M. P. Tosi. 2005-06-07. Boson-fermion mixtures inside an elongated cigar-shaped trap. https://doi.org/10.1088/0953-4075%2F38%2F16%2F006

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