Improvement on Temperature Measurement of Cold Atoms in a Rubidium Fountain

L(U) De-Sheng; QU Qiu-Zhi; WANG Sin; ZHAO Jian-Bo; LIU Liang; WANG Yu-Zhu

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Improvement on Temperature Measurement of Cold Atoms in a Rubidium Fountain

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@@ The time-of-flight (TOF) method is one of the most common ways to measure the temperature of cold atoms.In the cold atomic fountain setup, the geometry of the probe beam will introduce the measurement errors to the spatial distribution of cold atomic cloud, which will lead to the mcasurement errors on atomic temperature.Using deconvolution, we recover the atomic cloud profile from the TOF signal.Then, we use the recovered signals other than the TOF signals to obtain a more accurate atomic temperature.This will be important in estimating the effects of cold atom collision shift and the shift due to transverse cavity phase distribution on an atomic fountain clock.

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《中国物理快报：英文版》 |2011年第6期|90-93|共4页
作者
L(U) De-Sheng; QU Qiu-Zhi; WANG Sin; ZHAO Jian-Bo; LIU Liang; WANG Yu-Zhu;
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Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800;

Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800;

Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800;

Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800;

Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800;

Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800;

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Improvement on Temperature Measurement of Cold Atoms in a Rubidium Fountain

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