Ground-state properties of a dilute Bose-Fermi mixture

2002/07/10 by L. Viverit, S. Giorgini · 1 citation
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Physics of Superconductivity and Magnetism #Quantum, superfluid, helium dynamics #cond-mat.stat-mech

paper · pdf · doi:10.1103/physreva.66.063604

10 pages, 10 figures

arxiv created 2002/07/10 · openalex publication_date 2002/12/19 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We investigate the properties of a dilute boson-fermion mixture at zero temperature. The ground-state energy of the system is calculated to second order in the Bose-Fermi coupling constant. The Green's function formalism is applied to obtain results for the effect of Bose-Fermi interactions on the spectrum of phonon excitations, the momentum distribution, the condensate fraction, and the superfluid density of the bosonic component. A quantitative discussion of these effects is presented in the case of mixtures with attractive interspecies interaction.

Citations

• Phonon Spectrum and Dynamical Stability of a Dilute Quantum Degenerate Bose-Fermi Mixture
• Mean-field instability of trapped dilute boson-fermion mixtures
• Component separation in harmonically trapped boson-fermion mixtures
• Superfluidity versus Bose-Einstein condensation in a Bose gas with disorder

Cited by

• Mean-field theory of Bose–Fermi mixtures in optical lattices