Steven Chu

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Steven Chu (Chinese: 朱棣文; pinyin: Zhū Dìwén; born February 28, 1948) is an American physicist and former government official. He is a Nobel laureate and was the 12th U.S. secretary of energy. He is currently the William R. Kenan Jr. Professor of Physics and Professor of Molecular and Cellular Physiology at Stanford University. He is known for his research at the University of California, Berkeley, and his research at Bell Laboratories and Stanford University regarding the cooling and trapping o