Gerald Gabrielse (* 1951) is an American experimental physicist.
Gabrielse studied at Calvin College in Grand Rapids ( Michigan) (Bachelor 1973) and at the University of Chicago, where in 1975 he took his Master's degree and received his doctorate in 1980. From 1982 he was assistant professor at the University of Washington and from 1987 professor at Harvard University. Since 2003 he has been there Vasmer George Leverett Professor of Physics. 2000 to 2003 he was chairman of the physics faculty at Harvard.
Gabrielse reach several significant improvements in the measurement of fundamental physical quantities.
He led the TRAP collaboration, which succeeded ion trap for antiprotons at until then did not reach low temperatures of 4 K to build. This anti-hydrogen will be investigated by laser spectroscopy ( for example, in the of Gabrielse led ATRAP collaboration at CERN) and the method provided the best-ever test of CPT invariance ( comparison of the mass - to-charge ratio of the proton and antiproton with a precision of 9 × 10-11 ).
With a one-electron quantum cyclotron (one electron quantum cyclotron ) was the measurement of the magnetic moment of the electron by Gabrielse and co-workers by a factor of 15 for by then for 20 years the existing record to be improved. The method provided an improvement by a factor 20 to another method, the measurement of the fine structure constant.
In 2002 he was awarded the Davisson -Germer Prize and the 2011 Julius Edgar Lilienfeld Prize. In 2007 he became a member of the National Academy of Sciences. In 2005 he received the Humboldt Research Award in 2008 and the Italian Tommassoni and Chisesi price. He is a Fellow of the American Physical Society.
He also taught at schools and got into Harvard a price for his teaching ( Levenson Teaching Award ) for undergraduate Andes.