Enhancing single-atom loading in tightly confined dipole traps with ancillary dipole beam

• URL: http://arxiv.org/abs/2403.03068v1
• Date: Tue, 5 Mar 2024 15:57:11 GMT
• Title: Enhancing single-atom loading in tightly confined dipole traps with ancillary dipole beam
• Authors: Guang-Jie Chen, Zhu-Bo Wang, Chenyue Gu, Dong Zhao, Ji-Zhe Zhang, Yan-Lei Zhang, Chun-Hua Dong, Kun Huang, Guang-Can Guo, Chang-Ling Zou
• Abstract summary: Single atoms trapped in tightly focused optical dipole traps provide an excellent experimental platform for quantum computing. We propose and demonstrate a novel approach to enhancing the loading of single atoms by introducing a weak ancillary dipole beam. It was also demonstrated that multiple atoms could be loaded with the assistance of a counter-propagating beam.
• Score: 6.902310562762882
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Single atoms trapped in tightly focused optical dipole traps provide an excellent experimental platform for quantum computing, precision measurement, and fundamental physics research. In this work, we propose and demonstrate a novel approach to enhancing the loading of single atoms by introducing a weak ancillary dipole beam. The loading rate of single atoms in a dipole trap can be significantly improved by only a few tens of microwatts of counter-propagating beam. It was also demonstrated that multiple atoms could be loaded with the assistance of a counter-propagating beam. By reducing the power requirements for trapping single atoms and enabling the trapping of multiple atoms, our method facilitates the extension of single-atom arrays and the investigation of collective light-atom interactions.

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