报告题目: |
Ultracold Fermi gases with tunable interactions |
报告人: |
杜旭 |
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博士 Duke University
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报告时间: |
2009-10-22 14:00 |
报告地点: |
物理系三楼报告厅 |
主办单位: |
物理系 |
简介: |
摘要：
Ultracold Fermi gas of lithium-6 with tunable interactions is a very rich system in physics. A bias magnetic field is used to tune the gas near a Feshbach resonance, enabling studies from the weakly interacting regime to the strongly interacting regime. In the weakly interacting regime, our recent study of spin current in a Fermi gas provides interesting links to other research areas such as spintronics and nonlinear dynamics. In the strongly interacting regime, the system offers the great opportunities to test quantum many-body theories. In this talk, I will present two experiments on this system ?measurements of inelastic collisions of a two component Fermi gas in the BEC-BCS crossover, and observation of spin segregation and controlling of a spin current in a weakly interacting Fermi gas.
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