https://doi.org/10.1140/epjb/s10051-024-00649-9
Regular Article - Solid State and Materials
Periodic dynamics of population-imbalanced fermionic condensates in optical lattices
Department of Physics, University of Calcutta, 92 A. P. C. Road, 700009, Kolkata, India
a
avinaba.mukherjee@rediffmail.com
Received:
19
October
2023
Accepted:
9
January
2024
Published online:
3
February
2024
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.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
