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Updated: Jun 2, 2025

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
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Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

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优化了原子冷却方案,使用基于传输电网的磁光陷

Zheyu Liu, Muming Li, Shiming Wei

    Optics letters
    |January 16, 2025
    PubMed
    概括

    我们开发了一种紧的传输电网磁光陷 (TGMOT) 用于冷原子生成. 这种简化的设计提高了便携式量子技术的原子捕获和冷却效率.

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    Atomic Nuclei: Nuclear Relaxation Processes01:23

    Atomic Nuclei: Nuclear Relaxation Processes

    In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis,  the precessing magnetic moments are randomly oriented around the z-axis.
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