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Journal article · Preprint article

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

By Abdullaev, F. Kh1; Ögren, M.2; Sørensen, M. P.3,4,5

From

Universidade Federal do ABC1

University of Copenhagen2

Department of Applied Mathematics and Computer Science, Technical University of Denmark3

Dynamical Systems, Department of Applied Mathematics and Computer Science, Technical University of Denmark4

Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology, Technical University of Denmark5

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.

Language: English
Year: 2019
ISSN: 10941622 , 10502947 , 24699926 and 24699934
Types: Journal article and Preprint article
DOI: 10.1103/PhysRevA.99.033614
ORCIDs: Sørensen, M. P.
Keywords

cond-mat.quant-gas

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