Two-dimensional boson-fermion mixtures
Author
Subaşi, A.L.
Sevinçli, S.
Vignolo P.
Tanatar, Bilal
Date
2009Source Title
Physical Review A - Atomic, Molecular, and Optical Physics
Print ISSN
10502947
Volume
79
Issue
6
Language
English
Type
ArticleItem Usage Stats
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Abstract
Using mean-field theory, we study the equilibrium properties of boson-fermion mixtures confined in a harmonic pancake-shaped trap at zero temperature. When the modulus of the s -wave scattering lengths are comparable to the mixture thickness, two-dimensional scattering events introduce a logarithmic dependence on density in the coupling constants, greatly modifying the density profiles themselves. We show that, for the case of a negative boson-fermion three-dimensional s -wave scattering length, the dimensional crossover stabilizes the mixture against collapse and drives it toward spatial demixing. © 2009 The American Physical Society.
Keywords
Boson fermionsBoson-fermion mixtures
Coupling constants
De-mixing
Density profile
Dimensional crossover
Equilibrium properties
Logarithmic dependence
S-wave scattering lengths
Two-dimensional scattering
Zero temperatures
Bosons
Electromagnetic wave scattering
Fermions
Mean field theory
Shear waves
Two dimensional
Mixtures