Collective oscillations of a Bose-Fermi mixture: Effect of unequal mass of Bose and Fermi particles

Abstract

We investigate the effect of different mass of a Bose- and a Fermi-particle on the collective oscillations of the degenerate boson-fermion mixtures. In particular we consider the monopole and the quadrupole modes of the oscillations and study their characters and the frequencies by using variational-sum-rule approach. We find that for both the modes there exists a critical value of the ratio of boson-fermion mass below and above which the character and the frequency of the respective modes are significantly different.

15 pages, 4 figures

References in corpus (3)

• Interaction-driven Dynamics of 40K / 87Rb Fermi-Bose Gas Mixtures in the Large Particle Number Limit
• Control of the interaction in a Fermi-Bose mixture
• Mixing-demixing transition and collapse of a vortex state in a quasi-two-dimensional boson-fermion mixture

Cited by in corpus (6)

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• Superfluid Fermi-Fermi mixture: phase diagram, stability, and soliton formation
• Dipole dynamics of an interacting bosonic mixture
• Collective dynamics of Fermi-Bose mixtures with an oscillating scattering length
• Rotational properties of superfluid Fermi-Bose mixtures in a tight toroidal trap
• Dipole modes of a trapped bosonic mixture: Fate of the sum-rule approach