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Updated: Jun 26, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
Trapping and cooling fermionic atoms into Mott and Néel states
Lorenzo De Leo1, Corinna Kollath, Antoine Georges
1Centre de Physique Théorique, Ecole Polytechnique, CNRS, 91128 Palaiseau, France.
Abstract:
We perform a theoretical study of a fermionic gas with two hyperfine states confined to an optical lattice. We derive a generic state diagram as a function of interaction strength, particle number, and confining potential. We discuss the central density, the double occupancy, and their derivatives as probes for the Mott state, connecting our findings to the recent experiment of Jördens et al. [Nature (London) 455, 204 (2008)10.1038/nature07244]. Using entropic arguments we compare two different strategies to reach the antiferromagnetic state in the presence of a trapping potential.
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