Gerald Gabrielse

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Gerald Gabrielse is an American physicist and the George Vasmer Leverett Professor of Physics at Harvard University. In 2007, he was elected a member of the National Academy of Sciences.

Contents 1 Education 2 Academic career 3 Research 4 Religious views 5 References

[edit] Education

Gerald Gabrielse studied at Trinity Christian College, Illinois for two years and then moved to Calvin College, Michigan. He graduated with a B.S. (honors) from Calvin College. He then completed his M.S. (1975) and Ph.D. (1980) in physics from the University of Chicago.

[edit] Academic career

After completing his PhD, he joined the faculty at the University of Washington in Seattle. He became a professor of physics at Harvard University in 1987. He was named the George Vasmer Leverett Professor of Physics at Harvard University in 2003.

[edit] Research

Gabrielse led the international TRAP team that developed the techniques to accumulate antiprotons at 4 K - an energy more than 10¹⁰ times lower than previously realized. These techniques are being used in all efforts to produce and study cold antihydrogen. These techniques also led to the most stringent CPT test with baryons when the charge-to-mass ratio of a single antiproton and proton were compared to 9 parts in 1011, an accuracy improved by nearly a factor of a million.

Gabrielse also led The international ATRAP Collaboration which now uses these antiprotons to produce cold antihydrogen atoms, an important step towards comparing antihydrogen and hydrogen atoms via precise laser spectroscopy. The group's nested Penning trap, invented and demonstrated at Harvard University as a method for getting cold antiprotons and cold positrons to interact, was the crucial device that first permitted the observation of cold antihydrogen. ATRAP's first demonstration of positron cooling in a nested Penning trap established the crucial technique needed to first produce cold antihydrogen; ATRAP and others then used this device and method to observe cold antihydrogen. ATRAP's field ionization detection technique allowed a background-free observation and the first measurement of states of antihydrogen being produced, and their method to drive the production of antihydrogen substantially increased the production rate. ATRAP also demonstrated a second method to produce slow antihydrogen, for the first time using lasers to control the production via a charge exchange method.

[edit] Religious views

Gabrielse identifies himself as a Reformed Christian scientist. He said:

I do not believe that science and the Bible are in conflict. However, it is possible to misunderstand the Bible and to misunderstand science. It is important to figure out what of each might be misunderstood.^[1]

[edit] References

• Physics Department Faculty: Gerald Gabrielse. Harvard University. Retrieved on 2008-06-11.
• Gerald Gabrielse. Harvard University. Retrieved on 2008-06-11.
• Gabrielse research group. Harvard University. Retrieved on 2008-06-11.