About
Steven Chu is an American physicist and former government official known for his groundbreaking work in physics and his service as the 12th U.S. Secretary of Energy. A Nobel laureate, he received the 1997 Nobel Prize in Physics for his work on cooling and trapping atoms with laser light. He is currently a professor at Stanford University, continuing his research and teaching in physics and molecular physiology. Chu is a leading voice in advocating for sustainable energy solutions and addressing climate change.
Career Timeline
Joins Stanford Faculty
Begins groundbreaking research at Stanford on laser cooling and atom trapping. Early academic career shows promise but limited public recognition.
Wins Nobel Prize in Physics
Receives Nobel Prize for pioneering work on cooling and trapping atoms with laser light. Achieves elite scientific status and international recognition in physics community.
Director of Lawrence Berkeley Lab
Appointed director of prestigious Lawrence Berkeley National Laboratory. Expands influence in scientific research and energy policy circles.
Appointed U.S. Energy Secretary
Becomes Energy Secretary under President Obama, the first Nobel laureate to serve in a U.S. Cabinet. Gains significant national prominence and policy influence.
Returns to Stanford After Cabinet
Completes tenure as Energy Secretary after championing clean energy initiatives and climate policy. Returns to academia with enhanced reputation as both scientist and policy leader.
Leading Climate Change Advocate
Continues research and teaching at Stanford while serving as prominent voice on climate change and sustainable energy. Maintains A-list status in scientific and policy communities as Nobel laureate and former Cabinet member.
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Last updated: February 23, 2026