U.S.-Japan Cooperative Science: Optical Pumping of High Density, Low Temperature Gases: Exploring New Applications

美日合作科学：高密度低温气体光泵浦：探索新应用

• 批准号: 9726767
• 负责人: William Happer
• 金额: $ 4.29万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-04-15 至 2002-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9726767&HistoricalAwards=false
• 关键词: U.S.; Japan; Cooperative; Science; Optical

9726767 Happer This award supports a three year collaborative research project between Professor William Happer of Princeton University and Professor Tsutomu Yabuzaki of Kyoto University in Japan. The researchers will be undertaking studies relating to new applications for laser optical pumping of high density, low temperature gases. The objectives of the research are: (1) to undertake a complete detailed characterization of optical pumping in low temperature cells, coated with superfluid He. and (2) to develop an experiment to measure the electric dipole moment (EDM) of atomic Cs in a superfluid He coated cell. This project brings together the efforts of two laboratories that have complementary expertise, research capabilities and equipment. The collaboration will unite the experimental and theoretical expertise in laser optical pumping and spin exchange at Princeton with the cryogenic techniques developed at Kyoto University. The Japanese collaborator is a world leader in the manipulation of alkali metal vapors in cryogenic cells. The research should provide insight into the validity of current theoretical models of optical pumping and possibly help ameliorate some of the disagreements between theory and experiments that currently exist. Through the exchange of ideas and technology, this project will broaden our base of basic knowledge and promote international understanding and cooperation.

9726767 Happer该奖项支持普林斯顿大学William Happer教授和日本京都大学Tsutomu Yabuzaki教授为期三年的合作研究项目。研究人员将进行有关高密度、低温气体激光光泵浦新应用的研究。本研究的目的是：(1)在涂有超流体He的低温电池中对光泵浦进行完整详细的表征。(2)建立了超流体He包覆电池中原子Cs的电偶极矩（EDM）测量实验。该项目汇集了两个具有互补专业知识、研究能力和设备的实验室的努力。这项合作将把普林斯顿大学在激光光泵浦和自旋交换方面的实验和理论专业知识与京都大学开发的低温技术结合起来。日本合作者在低温细胞中操纵碱金属蒸气方面处于世界领先地位。该研究将有助于深入了解当前光泵浦理论模型的有效性，并可能有助于改善目前存在的理论和实验之间的一些分歧。通过思想和技术的交流，该项目将扩大我们的基础知识基础，促进国际了解与合作。