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arXiv · 2003.11829

Experimental realization of spin-tensor momentum coupling in ultracold Fermi gases

Donghao Li·Lianghui Huang·Peng Peng·Guoqi Bian·Pengjun Wang·Zengming Meng·Liangchao Chen·Jing Zhang
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Abstract

We experimentally realize the spin-tensor momentum coupling (STMC) using the three ground Zeeman states coupled by three Raman laser beams in ultracold atomic system of $^{40}$K Fermi atoms. This new type of STMC consists of two bright-state bands as a regular spin-orbit coupled spin-1/2 system and one dark-state middle band. Using radio-frequency spin-injection spectroscopy, we investigate the energy band of STMC. It is demonstrated that the middle state is a dark state in the STMC system. The realized energy band of STMC may open the door for further exploring exotic quantum matters.

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Donghao Li, Lianghui Huang, Peng Peng, Guoqi Bian, Pengjun Wang, Zengming Meng, Liangchao Chen, Jing Zhang. 2020-03-26. Experimental realization of spin-tensor momentum coupling in ultracold Fermi gases. https://doi.org/10.1103/physreva.102.013309

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