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About Barry
Barry C. Barish is the Ronald and Maxine Linde Professor of Physics, Emeritus, at Caltech's Division of Physics, Mathematics and Astronomy. He received a B.A. from the University of California in 1957, a Ph.D. from the University of California, Berkeley in 1962, and an honorary Laurea from the University of Bologna. Barish joined Caltech in 1963 as a Research Fellow and advanced through the ranks: Assistant Professor (1966-1969), Associate Professor (1969-1972), Professor (1972-1991), Linde Professor (1991-2005), and Emeritus since 2005. Early in his career, he contributed to experimental high-energy physics programs using national accelerators. He served as Principal Investigator for the Caltech High Energy Physics Group from 1984 to 1996.
Barish's most renowned contributions are to gravitational-wave physics through the Laser Interferometer Gravitational-Wave Observatory (LIGO). He was Principal Investigator (1994-1997), Director (1997-2006), and has been Senior Scientist since 2006. His leadership enabled LIGO's first detection of gravitational waves in 2015 from merging black holes, validating general relativity and opening gravitational-wave astronomy. This work earned him the 2017 Nobel Prize in Physics, shared with Rainer Weiss and Kip Thorne. Additionally, he directed the International Linear Collider's Global Design Effort (2005-2012). Barish has garnered many honors, including the 2023 National Medal of Science, election to the American Philosophical Society (2025), Royal Society Foreign Member (2019), National Academy of Sciences (2002), and awards like the Princess of Asturias Prize for Technical & Scientific Research (2017), Henry Draper Medal (2017), and Enrico Fermi Prize (2016). He has chaired committees such as the AURA LSST Oversight Committee (2016-present) and contributed to U.S. high-energy physics planning via HEPAP and IUPAP roles. Barish's efforts have transformed the field of Physics, establishing LIGO as a premier observatory for multimessenger astronomy.
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