2009/06/30 by A. L. Subasi, A. L. Subaşı, S. Sevincli +4
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #cond-mat.quant-gas
paper · pdf · doi:10.1103/physreva.79.063632
published as Phys. Rev. A 79, 063632 (2009) · 9 pages, 4 figures
openalex publication_date 2009/06/30 · arxiv created 2009/07/06 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.