Artificial magnetism for a harmonically trapped Fermi gas in a synthetic magnetic field. (28th June 2023)

• Record Type: Journal Article
• Authors: Biswas, Shyamal; Ghosh, Avijit; Majumder, Soumyadeep
• Is Part Of: Journal of physics. Volume 35:Number 25(2023)
• Publication Date: 2023-06-28
• Subjects: artificial magnetism -- Landau diamagnetism -- de Haas-van Alphen effect -- ultracold gases -- trapped gases -- Fermi system -- synthetic magnetic field; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/1361-648X/acc719
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: We have analytically explored the artificial magnetism for a 3D 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.