• Daniel Kleppner, MIT professor emeritus, passed away at 92, leaving legacy in atomic physics. • Co‑invented hydrogen maser atomic clock, advancing precision timekeeping and GPS technology. • Pioneered research on Rydberg atoms, cavity QED, and Bose‑Einstein condensation. • Led MIT RLE, co‑founded MIT‑Harvard Center for Ultracold Atoms, shaping AMO physics. • Mentor to Nobel laureates, his guidance enabled breakthroughs in quantum optics and computing. • Renowned for eloquence, exacting research, and statesmanlike leadership in physics community.
Article Summaries:
- Professor Emeritus Daniel Kleppner, a leading figure in experimental atomic physics, died on June 16 at age 92 in Palo Alto, California. A long‑time MIT faculty member, Kleppner’s research spanned precision hydrogen maser clocks, Rydberg atoms, cavity quantum electrodynamics, and pioneering work on Bose‑Einstein condensation. He served as associate director of MIT’s Research Laboratory of Electronics (1987‑2000) and co‑founded the MIT‑Harvard Center for Ultracold Atoms. Though never a Nobel laureate, his work underpinned technologies such as GPS, MRI, and quantum computing, and he mentored many future Nobel winners. His colleagues praised his scientific rigor, eloquence, and community leadership.
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