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叶军关于冷原子的综述
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Precision measurement and frequency metrology with ultracold atoms Xibo Zhang and Jun Ye Natl Sci Rev (June 2016) 3 (2): 189-200 doi:10.1093/nsr/nww013 http://nsr.oxfordjournals.org/content/3/2/189.full ABSTRACT Precision measurement and frequency metrology have pushed many scientific and technological frontiers in the field of atomic, molecular and optical physics. In this article, we provide a brief review on the recent development of optical atomic clocks, with an emphasis placed on the important inter-dependence between measurement precision and systematic effects. After presenting a general discussion on the motivation and techniques behind the development of optical lattice clocks, where the use of many atoms greatly enhances the measurement precision, we present the JILA strontium optical lattice clock as the leading system of frequency metrology with the lowest total uncertainty, and we describe other related research activities. We discuss key ingredients that have enabled the optical lattice clocks with ultracold atoms to reach the 18th digit in both precision and accuracy. Furthermore, we discuss extending the power of precision clock spectroscopy to study quantum many-body physics and to provide control for atomic quantum materials. In addition, we explore future research directions that have the potential to achieve even greater precision. Keywords: ultracold atoms, optical atomic clocks, precision measurement, frequency metrology, many-body physics, quantum state control NSR专题｜冷原子（特邀编辑：叶军） 相关链接：http://nsr.oxfordjournals.org/content/3/2.toc |
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2016-12-29 14:45:52, 453.21 K
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