https://doi.org/10.1140/epjb/e2007-00288-x
Density and stability in ultracold dilute boson-fermion mixtures
1
Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
2
Universität Duisburg-Essen, Campus Duisburg, Fachbereich Physik, Lotharstraße 1, 47048 Duisburg, Germany
Corresponding authors: a steffen.roethel@uni-muenster.de - b axel.pelster@uni-duisburg-essen.de
Received:
11
May
2007
Revised:
20
August
2007
Published online:
17
October
2007
We analyze in detail recent experiments on ultracold dilute 87Rb–40K mixtures in Hamburg and in Florence within a mean-field theory. To this end we determine how the stationary bosonic and fermionic density profiles in this mixture depend in the Thomas-Fermi limit on the respective particle numbers. Furthermore, we investigate how the observed stability of the Bose-Fermi mixture with respect to collapse is crucially related to the value of the interspecies s-wave scattering length.
PACS: 03.75.Hh – Static properties of condensates; thermodynamical, statistical, and structural properties
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2007