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Boson-fermion mixtures inside an elongated cigar-shaped trap | | Z. Akdeniz
; P. Vignolo
; M.P. Tosi
; | | Date: |
17 May 2005 | | Subject: | Other | cond-mat.other | | Affiliation: | SNS Italy and Istanbul University | | 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. | | Source: | arXiv, cond-mat/0505412 | | Services: | Forum | Review | PDF | Favorites | |
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