论文标题
旋转轨道 - 摩托偶联量子气体
Spin-orbital-angular-momentum-coupled quantum gases
论文作者
论文摘要
我们简要回顾了关于自旋轨道 - 角摩膜(SOAM)耦合的量子气的最新理论和实验的进展。宇宙中广泛存在颗粒的内在自由度及其外部轨道运动之间的耦合,并导致经典物理学和量子力学中的各种基本现象。最近认识到冷原子中的合成SOAM耦合引起了很多关注,并刺激了对玻色和费米气体中异国情调量子相的大量考虑。在这篇综述中,我们提出了一个基本思想,即从原子互动的半经典描述开始,在中性原子中耦合中性原子。讨论了在SOAM耦合存在下单粒子物理学的独特特征。引入了弱相互作用的岩体气体的有趣的地面量子阶段,重点是目前尚未观察到的所谓角条纹相。它展示了如何在浸泡的费米超氟中产生稳定的巨型涡流。我们还讨论了在煤气耦合的情况下,费米超流体的拓扑特征。然后,我们介绍了$^{87} $ rb bose气体中的SOAM耦合的实验成就及其对相变的首次观察。还总结了实验中SOAM耦合的Bose气体的最新发展。关于超低量子气体的可控性,它在量子模拟的角度开放了一个新时代,以研究由soam耦合以及新出现的量子阶段产生的基本物理学。
We briefly review the recent progress of theories and experiments on spin-orbital-angular-momentum (SOAM)-coupled quantum gases. The coupling between the intrinsic degree of freedom of particles and their external orbital motions widely exists in universe, and leads to a broad variety of fundamental phenomena both in the classical physics and quantum mechanics. Recent realization of synthetic SOAM coupling in cold atoms has attracted a great deal of attention, and stimulates a large amount of considerations on exotic quantum phases in both Bose and Fermi gases. In this review, we present a basic idea of engineering SOAM coupling in neutral atoms, starting from a semiclassical description of atom-light interaction. Unique features of the single-particle physics in the presence of SOAM coupling are discussed. The intriguing ground-state quantum phases of weakly interacting Bose gases are introduced, with emphasis on a so-called angular stripe phase, which has yet been observed at present. It is demonstrated how to generate a stable giant vortex in a SOAM-coupled Fermi superfluid. We also discuss topological characters of a Fermi superfluid in the presence of SOAM coupling. We then introduce the experimental achievement of SOAM coupling in $^{87}$Rb Bose gases and its first observation of phase transitions. The most recent development of SOAM-coupled Bose gases in experiments is also summarized. Regarding the controllability of ultracold quantum gases, it opens a new era, on the quantum simulation point of view, to study the fundamental physics resulted from SOAM coupling as well as newly emergent quantum phases.