论文标题

SU(N)退化费米气体中的绝热自旋依赖性动量转移

Adiabatic spin-dependent momentum transfer in an SU(N) degenerate Fermi gas

论文作者

Bataille, P., Litvinov, A., Manai, I., Huckans, J., Wiotte, F., Kaladjian, A., Gorceix, O., Maréchal, E., Laburthe-Tolra, B., Robert-de-Saint-Vincent, M.

论文摘要

我们引入了一种自旋轨道耦合方案,其中曲线反射的激光束在相反的方向上选择性地衍射为两个旋转成分。自旋灵敏度是通过扫描磁场敏感过渡来提供的,而黑暗状态可确保自发发射保持较低。该方案是绝热的,因此本质上是健壮的。这款量身定制的自旋轨道耦合可以同时测量南跨肾上腺费米气体的自旋和动量分布,从而为SU(N)量子磁体上的动量分辨自旋相关测量打开了路径。

We introduce a spin-orbit coupling scheme, where a retro-reflected laser beam selectively diffracts two spin components in opposite directions. Spin sensitivity is provided by sweeping through a magnetic-field sensitive transition while dark states ensure that spontaneous emission remains low. The scheme is adiabatic and thus inherently robust. This tailored spin-orbit coupling allows simultaneous measurements of the spin and momentum distributions of a strontium degenerate Fermi gas, and thus opens the path to momentum-resolved spin correlation measurements on SU(N) quantum magnets.

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