快速制备均匀填充的中性原子阵列

Rapid Production of Uniformly Filled Arrays of Neutral Atoms.

机构信息

JILA, National Institute of Standards and Technology and University of Colorado, and Department of Physics, University of Colorado, Boulder, Colorado 80309, USA.

Institut für Laserphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany.

出版信息

Phys Rev Lett. 2015 Aug 14;115(7):073003. doi: 10.1103/PhysRevLett.115.073003.

DOI:10.1103/PhysRevLett.115.073003

PMID:26317718

Abstract

We demonstrate rapid loading of a small array of optical tweezers with a single ^{87}Rb atom per site. We find that loading efficiencies of up to 90% per tweezer are achievable in less than 170 ms for traps separated by more than 1.7 μm. Interestingly, we find the load efficiency is affected by nearby traps and present the efficiency as a function of the spacing between two optical tweezers. This enhanced loading, combined with subsequent rearranging of filled sites, will enable the study of quantum many-body systems via quantum gas assembly.

摘要

我们展示了通过单个原子将一个小的光镊阵列快速加载。我们发现，对于间隔超过 1.7μm 的陷阱，每个光镊的加载效率在不到 170ms 内可达 90%以上。有趣的是，我们发现加载效率受到附近陷阱的影响，并给出了光镊之间的间距的函数关系。这种增强的加载，加上后续填充的位点的重新排列，将使通过量子气体组装来研究量子多体系统成为可能。