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Periodic dynamics of population-imbalanced fermionic condensates in optical lattices

Author

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  • Avinaba Mukherjee

    (University of Calcutta)

  • Raka Dasgupta

    (University of Calcutta)

Abstract

We investigate the dynamics of a population-imbalanced two-species fermionic system trapped in an optical lattice. The paired fermions here can form bosonic molecules via Feshbach coupling in the presence of an external magnetic field. It is shown that the natural fluctuations of the condensate fraction are periodic beyond a threshold Feshbach detuning; below this threshold value, the condensate fraction shows no oscillation at all. The oscillation frequency vs. detuning curve is linear in nature. The slope and intercept of this line are shown to carry important information about the amount of imbalance present in the system, and the momentum-space structure of the exotic phases. Graphical abstract

Suggested Citation

  • Avinaba Mukherjee & Raka Dasgupta, 2024. "Periodic dynamics of population-imbalanced fermionic condensates in optical lattices," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 97(2), pages 1-13, February.
    • Handle: RePEc:spr:eurphb:v:97:y:2024:i:2:d:10.1140_epjb_s10051-024-00649-9
    DOI: 10.1140/epjb/s10051-024-00649-9
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