Collective dynamics of Fermi-Bose mixtures with an oscillating scattering length

F. Kh Abdullaev, M. Ögren, M. P. Sørensen*

*Corresponding author for this work

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Collective oscillations of superfluid mixtures of ultracold fermionic and bosonic atoms are investigated while varying the fermion-boson scattering length. We study the dynamics with respect to excited center of mass modes and breathing modes in the mixture. Parametric resonances are also analyzed when the scattering length varies periodically in time, by comparing partial differential equation models and ordinary differential equation models for the dynamics. An application to the recent experiment with fermionic 6Li and bosonic 7Li atoms, which approximately have the same masses, is discussed.

Original languageEnglish
Article number033614
JournalPhysical Review A
Issue number3
Number of pages10
Publication statusPublished - 2019

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