Fast polarimetry system for the application to spin quantum non-demolition measurement期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Fast polarimetry system for the application to spin quantum non-demolition measurement

Authors:	M. Takeuchi T. Takano S. Ichihara A. Yamaguchi M. Kumakura T. Yabuzaki Y. Takahashi

Affiliation:	(1) Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan;(2) PREST, JST, 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan;(3) CREST, JST, 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan;(4) Faculty of Information Science and Arts, Osaka Electro-Communication University, Osaka 572-8530, Japan

Abstract:	We report the development of a fast pulse polarimeter for the application to quantum non-demolition measurement of atomic spin (spin QND). The developed system was tunable to the atomic resonance of a ytterbium atom and has narrow laser line width suitable for spin QND. Using the developed polarimeter, we successfully demonstrated the measurement of the vacuum noise, with 10⁶ to 10⁷ photon number per pulse. PACS 42.25.Ja; 42.50.Lc; 42.55.Px

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