Deterministic loading of an individual atom:Towards scalable implementation of multi-qubit  

作　　者：何军 刘贝 王杰英 刁文婷 靳刚 王军民 

机构地区：[1]State Key Laboratory of Quantum Optics and Quantum Optics Devices, Shanxi University [2]Institute of Opto-Electronics, Shanxi University [3]Collaborative Innovation Center of Extreme Optics, Shanxi University

出　　处：《Chinese Physics B》2017年第11期167-172,共6页中国物理B（英文版）

基　　金：Project supported by the National Major Scientific Research Program of China(Grant No.2012CB921601);the National Natural Science Foundation of China(Grant Nos.61205215,11274213,and 61475091);the National Key Research and Development Program of China(Grant No.2017YFA0304502)

摘　　要：We report the realization of a deterministic single-atom preparation by the method of all-optical feedback. Using a fast-real-time feedback, the light-induced atom desorption effect and blue detuned light-induced atom collision process can increase a success probability of single-atom preparation up to more than 99%. We investigate the dynamics of loading single atom trapped in a trap with a size of hundreds of micrometers into a pair of microscopic tweezers. The detailed experimental results show that the feedback loading is spatially insensitive, which implies that it is possible to use the feedback protocol to simultaneously implement the loading of large number of qubits arrays.We report the realization of a deterministic single-atom preparation by the method of all-optical feedback. Using a fast-real-time feedback, the light-induced atom desorption effect and blue detuned light-induced atom collision process can increase a success probability of single-atom preparation up to more than 99%. We investigate the dynamics of loading single atom trapped in a trap with a size of hundreds of micrometers into a pair of microscopic tweezers. The detailed experimental results show that the feedback loading is spatially insensitive, which implies that it is possible to use the feedback protocol to simultaneously implement the loading of large number of qubits arrays.

关 键 词：single atom microscopic optical dipole trap atom heating 

分 类 号：O413[理学—理论物理] O562[理学—物理]