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郭文祥, 刘伍明. 光晶格中的冷原子[J]. 物理, 2016, 45(6): 370-377. DOI: 10.7693/wl20160603
引用本文: 郭文祥, 刘伍明. 光晶格中的冷原子[J]. 物理, 2016, 45(6): 370-377. DOI: 10.7693/wl20160603
GUO Wen-Xiang, LIU Wu-Ming. Cold atoms in an optical lattice[J]. PHYSICS, 2016, 45(6): 370-377. DOI: 10.7693/wl20160603
Citation: GUO Wen-Xiang, LIU Wu-Ming. Cold atoms in an optical lattice[J]. PHYSICS, 2016, 45(6): 370-377. DOI: 10.7693/wl20160603

光晶格中的冷原子

Cold atoms in an optical lattice

  • 摘要: 光晶格是一种人造光晶体,它是由反向传播激光束干涉形成的周期性势阱构成的。光晶格的周期、势深等参量可以通过调节激光的强度和频率等来准确控制。作为一个纯净可控的实验平台,光晶格已经逐渐成长为模拟多体系统的最便利的工具之一。文章对光晶格中冷原子进行了简单的介绍,重点阐述了玻色—爱因斯坦凝聚、激光冷却、光晶格和量子相变等内容。

     

    Abstract: An optical lattice is an artificial light crystal which is formed by the periodic potential wells created by the interference of counter-propagating laser beams. Its periodicity and well depth can be accurately tuned by changing the power and frequency of the laser beams. As a clean, controllable experimental platform, the optical lattice has gradually became one of the most convenient tools used to simulate many-body systems. This article is a brief introduction tocold atom physics, with particular emphasis on Bose-Einstein condensates, laser cooling, optical lattices,and quantum transitions.

     

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