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

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.

arXiv comment6 pages, 4 figures

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Cited by in corpus (6)

• Synthetic non-Abelian topological charges in ultracold atomic gases
• Unpaired topological triply degenerate point for spin-tensor-momentum-coupled ultracold atoms
• Quantum spiral spin-tensor magnetism
• Spin-tensor Meissner currents of ultracold bosonic gas in an optical lattice
• Synthetic Hall tube of interacting fermions
• Dynamical Zeeman resonance in spin-orbit-coupled spin-1 Bose gases