摘要
提出基于平顶复合光脉冲构建大动量原子干涉仪的方案。利用大动量原子干涉仪灵敏度函数解析模型,对大动量原子干涉仪的对比度和相位噪声进行分析。将平顶复合光脉冲应用于原子干涉仪进行仿真计算,结果表明平顶光相比高斯光可提高原子团跃迁的一致性,增加原子干涉条纹的对比度。通过设计对称反向的复合脉冲序列,抑制多脉冲作用过程中相位噪声和振动噪声的干扰。数值仿真结果表明,相比高斯光脉冲,使用平顶复合光脉冲的大动量原子干涉仪的灵敏度提高了1个量级,同时具有较好的抑制环境噪声的能力。
Herein,we propose a scheme for developing a large-momentum-transfer atom interferometer based on the top-hat composite light pulse technique.Additionally,we analyze the contrast and phase noise using a theoretical model of the sensitivity function of the proposed atom interferometer.A top-hat composite light pulse is used to simulate calculations based on the atom interferometer.We confirm that compared with a Gaussian beam,a top-hat composite light pulse can improve the consistency of atom cloud transitions and increase the contrast of atom interference fringes.By designing symmetrical and reversed composite pulse sequences,the phase noise and vibration noise in the time interval and free evolution process of multipulse action can be suppressed.The numerical simulation results show that the sensitivity of the proposed atom interferometer using a top-hat composite light pulse increases by one order of magnitude compared with that using a Gaussian beam.Moreover,the proposed atom interferometer achieves satisfactory suppression of external technical noise.
作者
陈小莉
鲁思滨
姚战伟
蒋敏
李少康
李润兵
王谨
詹明生
Chen Xiaoli;Lu Sibin;Yao Zhanwei;Jiang Min;Li Shaokang;Li Runbing;Wang Jin;Zhan Mingsheng(Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences,Wuhan 430071,Hubei,China;University of Chinese Academy of Sciences,Beijing 100049,China;Hefei National Laboratory,Hefei 230094,Anhui,China;Wuhan Institute of Quantum Technology,Wuhan 430206,Hubei,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2023年第11期286-293,共8页
Laser & Optoelectronics Progress
基金
国家重点研发计划(2016YFA0302002)
国家自然科学基金(12104466,11674362,91536221,91736311)
科技创新2030“量子通信与量子计算机”重大项目(2021ZD0300604)
中国科学院战略先导研究计划(XDB21010100)
中国科学院青年创新促进会项目(Y201857)
湖北省杰出青年科学基金(2018CFA082)。
关键词
平顶复合光脉冲
大动量原子干涉仪
对比度
相位噪声
top-hat composite light pulse
large-momentum-transfer atom interferometer
contrast
phase noise
