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Spin Polarization Control via Magnetic Field in Dissipative Bosonic Systems

Spin Polarization Control via Magnetic Field in Dissipative Bosonic Systems

来源:Arxiv_logoArxiv
英文摘要

Engineering spin polarization in dissipative bosonic systems is crucial for advancing quantum technologies, especially for applications in quantum metrology and space-based quantum simulations. This work demonstrates precise magnetic moment control in multicomponent Bose gases during evaporative cooling via tailored magnetic fields. By adjusting the magnetic field gradients, null point position, and duration, we selectively tune evaporation rates of magnetic sublevels, achieving targeted spin polarization. Theoretical models, validated by numerical simulations and Stern-Gerlach experiments, reveal how magnetic fields reshape trapping potentials and spin-dependent dissipation. The results establish a dissipative spin-selection mechanism governing polarization evolution in evaporatively cooled Bose gases and provide a framework for engineering spin-polarized quantum states.

Yaoyuan Fan、Shuoyu Shi、Lang Cao、Qiuxin Zhang、Dong Hu、Yu Wang、Xiaoji Zhou

物理学

Yaoyuan Fan,Shuoyu Shi,Lang Cao,Qiuxin Zhang,Dong Hu,Yu Wang,Xiaoji Zhou.Spin Polarization Control via Magnetic Field in Dissipative Bosonic Systems[EB/OL].(2025-06-22)[2025-07-16].https://arxiv.org/abs/2506.17962.点此复制

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