Chaotic dynamics of cold atoms in multidimensional optical lattices

IF 0.7 4区 物理与天体物理 Q4 OPTICS
Sergey V. Prants
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引用次数: 0

Abstract

Optical lattices, created by interfering laser beams, are efficient tools to manipulate cold atoms by adjusting the lattice geometry and parameters. A number of dynamical effects has been studied with cold atoms in one-dimensional optical lattices in classical, quantum, and semiclassical regimes. Recently, it has been shown that multi-dimensional optical lattices may lead to deeply different dynamics of non-interacting atoms allowing us to investigate the quantum–classical correspondence. We discuss the recent progress in studying classical, semiclassical, and quantum chaotic dynamics of cold atoms in two-dimensional and three-dimensional optical lattices with non-trivial geometry. The special attention is paid to classical versus quantum dynamics of atoms with the coupling between the internal and translational degrees of freedom. The dynamical mechanisms of transition to chaos and inhibition of the onset of chaos for atoms trapped inside wells of the optical potential and moving between different wells are discussed. We propose the experimental schemes that could distinguish between the regular and chaotic dynamics. The perspectives for observation of quantum chaos with cold atoms, that is the quantum regime of a system, whose classical dynamics is chaotic, are considered.

Abstract Image

多维光学晶格中冷原子的混沌动力学
通过干涉激光束产生的光学晶格是通过调整晶格的几何形状和参数来操纵冷原子的有效工具。在经典、量子和半经典状态下,研究了一维光学晶格中的冷原子的动力学效应。最近,研究表明,多维光学晶格可能导致非相互作用原子的不同动力学,使我们能够研究量子-经典对应关系。本文讨论了二维和三维非平凡几何光学晶格中冷原子的经典、半经典和量子混沌动力学的最新研究进展。特别关注原子的经典与量子动力学,以及内部自由度和平移自由度之间的耦合。讨论了被困于光势阱内并在不同阱间运动的原子跃迁到混沌的动力学机制和抑制混沌发生的机制。我们提出了能够区分规则动力学和混沌动力学的实验方案。考虑了用冷原子观测量子混沌的视角,即经典动力学为混沌的系统的量子状态。
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来源期刊
CiteScore
1.50
自引率
22.20%
发文量
73
审稿时长
2 months
期刊介绍: The journal publishes original, high-quality articles that follow new developments in all areas of laser research, including: laser physics; laser interaction with matter; properties of laser beams; laser thermonuclear fusion; laser chemistry; quantum and nonlinear optics; optoelectronics; solid state, gas, liquid, chemical, and semiconductor lasers.
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