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arXiv · 2208.10369

Artificial magnetism for a harmonically trapped Fermi gas in a synthetic magnetic field

Shyamal Biswas·Avijit Ghosh·Soumyadeep Majumder
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Abstract

We have analytically explored the artificial magnetism for a 3-D spin-polarized harmonically trapped ideal Fermi gas of electrically neutral particles exposed to a uniform synthetic magnetic field. Though polarization of the spin is necessary for trapping electrically neutral atoms in a magneto-optical trap, Pauli paramagnetism can not be studied for the spin-polarized Fermi system. However, it is possible to study Landau diamagnetism and de Haas-van Alphen effect for such a system. We have unified the artificial Landau diamagnetism and the artificial de Haas-van Alphen effect in a single framework for all temperatures as well as for all possible magnitudes of the synthetic magnetic field in the thermodynamic limit. Our prediction is testable in the present-day experimental setup for ultracold fermionic atoms in magneto-optical trap.

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Shyamal Biswas, Avijit Ghosh, Soumyadeep Majumder. 2022-08-22. Artificial magnetism for a harmonically trapped Fermi gas in a synthetic magnetic field. https://doi.org/10.1088/1361-648x%2Facc719

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