Dimensional crossover in two-dimensional Bose-Fermi mixtures

A. L. Subaşi, S. Sevinçli, P. Vignolo, B. Tanatar

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


We investigate the equilibrium properties of boson-fermion mixtures consisting of a Bose condensate and spin-polarized Fermi gas confined in a harmonic two-dimensional (2D) trap using mean-field theory. Boson-boson and boson-fermion coupling constants have a logarithmic dependence on the density because of the two-dimensional scattering events when the s-wave scattering lengths are on the order of mixture thickness. We show that this modifies the density profiles significantly. It is also shown that the dimensional crossover stabilizes the mixture against collapse and spatial demixing is observed for the case of a negative boson-fermion scattering length.

Original languageEnglish
Pages (from-to)683-693
Number of pages11
JournalLaser Physics
Issue number3
Publication statusPublished - Mar 2010
Externally publishedYes


ACKNOWLEDGMENTS We dedicate this work to the memory of our teacher, colleague and friend Alexander Stanislavov ich Schumovsky (1945–2007). This work is supported by TUBITAK (Nos. 108T743 and 109T267), TUBA and European Union 7th Framework project UNAM REGPOT (no. 203953).

FundersFunder number
European Union 7th Framework203953
TUBITAK108T743, 109T267


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