Dimensional crossover in two-dimensional Bose-Fermi mixtures
Author
Subaşi, A. L.
Sevinçli, S.
Vignolo, P.
Tanatar, Bilal
Date
2010Source Title
Laser Physics
Print ISSN
1054-660X
Electronic ISSN
1555-6611
Publisher
Institute of Physics Publishing
Volume
20
Issue
3
Pages
683 - 693
Language
English
Type
ArticleItem Usage Stats
140
views
views
118
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Abstract
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.
Keywords
Bose condensatesBose-fermi mixtures
Boson fermions
Boson-fermion mixtures
Coupling constants
De-mixing
Density profile
Dimensional crossover
Equilibrium properties
Fermi gas
Logarithmic dependence
S-wave scattering lengths
Scattering length
Spin-polarized
Two-dimensional scattering
Bosons
Electron gas
Gas condensates
High energy physics
Mean field theory
Mixtures
Scattering
Two dimensional
Fermions
Permalink
http://hdl.handle.net/11693/22404Published Version (Please cite this version)
http://dx.doi.org/10.1134/S1054660X1005018XCollections
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