Jiménez-García K, LeBlanc L J, Williams R A, Beeler M C, Qu C, Gong M, Zhang C, Spielman I B
Joint Quantum Institute, National Institute of Standards and Technology, and University of Maryland, Gaithersburg, Maryland 20899, USA.
Departamento de Física, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, México Distrito Federal 07360, México.
Phys Rev Lett. 2015 Mar 27;114(12):125301. doi: 10.1103/PhysRevLett.114.125301. Epub 2015 Mar 24.
Spin-orbit coupling is an essential ingredient in topological materials, conventional and quantum-gas-based alike. Engineered spin-orbit coupling in ultracold-atom systems-unique in their experimental control and measurement opportunities-provides a major opportunity to investigate and understand topological phenomena. Here we experimentally demonstrate and theoretically analyze a technique for controlling spin-orbit coupling in a two-component Bose-Einstein condensate using amplitude-modulated Raman coupling.
自旋轨道耦合是拓扑材料中的一个基本要素，无论是传统材料还是基于量子气体的材料均是如此。在超冷原子系统中设计的自旋轨道耦合——在实验控制和测量机会方面具有独特性——为研究和理解拓扑现象提供了一个重要契机。在此，我们通过实验证明并从理论上分析了一种利用振幅调制拉曼耦合来控制双组分玻色-爱因斯坦凝聚体中自旋轨道耦合的技术。
