Honors for two Berkeley physicists
Richards and Smoot recognized separately for their contributions to astrophysics
| 04 March 2009
BERKELEY — Two Berkeley physicists — Paul Richards and Nobel laureate George Smoot — have been honored for their contributions to astrophysics research and teaching.
Richards, Professor of the Graduate School in the Department of Physics, shares the Dan David Prize with his former postdoctoral fellow, Andrew E. Lange, and with Paolo De Bernardis for their contributions to understanding the “past” history of the universe. The annual prize, endowed by the Dan David Foundation and headquartered at Tel Aviv University in Israel, “recognizes and encourages innovative and interdisciplinary research that cuts across traditional boundaries and paradigms,” according to the foundation. Awarded annually since 2002 in each of three realms — past, present, and future — the prize comes with $1 million.
Smoot, professor of physics and a research physicist at Lawrence Berkeley National Laboratory, was honored with the Oersted Medal by the American Association of Physics Teachers. The annual medal, which has been awarded since 1936, comes with $10,000 and “recognizes those who have had an outstanding, widespread, and lasting impact on the teaching of physics,” according to the association.
Evidence of cosmic inflation
Richards organized and led the international collaboration known as the Millimeter Anisotropy eXperiment IMaging Array (MAXIMA), which measured temperature fluctuations in the cosmic microwave background radiation — the low-temperature glow left over from the Big Bang. From these measurements, reported in 2000, Richards and his colleagues deduced that the universe has a flat, Euclidean geometry and found evidence for cosmic inflation — a rapid expansion of the universe that occurred a fraction of a second after the Big Bang.
The results also confirmed that visible matter makes up only 5 percent of the matter and energy in the universe. The remainder is either cold dark matter — the unseen mass that holds galaxies together — or dark energy, a mystifying pressure or repulsive force that seems to be accelerating the expansion of the universe.
The experiment paralleled de Bernardis and Andrew Lange’s Balloon Observations Of Millimetric Extragalactic Radiation and Geophysics (BOOMERanG) experiment.
“Sharing the award with my good friends Andrew Lange and Paolo de Bernardis makes a lot of sense, since the three of us collaborated and competed to various degrees on the MAXIMA and Boomerang experiments,” Richards wrote in an e-mail from Costa Rica, where he was vacationing. “Together [these experiments] ushered in the era of precision cosmology. Both experiments began when Lange was a postdoc in my group in Berkeley and continued when he was an assistant professor.”
Lange is now the Goldberger Professor of Physics at the California Institute of Technology in Pasadena. De Bernardis is a professor of physics at the University La Sapienza in Rome.
Richards, who has been a Berkeley faculty member since 1966, is a member of the National Academy of Sciences, the American Academy of Arts and Sciences, the American Physical Society, and Phi Beta Kappa. His awards include the Frank Isakson Prize for Optical Effects in Solids; the Button Medal for Outstanding Contributions to the Science of the Electromagnetic Spectrum; and the Department of Energy Award in Solid State Physics for Outstanding Scientific Accomplishments. He was named California Scientist of the Year in 1981.
Smoot, who joined the Berkeley faculty in 1994, won the Nobel Prize in Physics in 2006 for his work with NASA’s John Mather on the Cosmic Background Explorer (COBE) satellite, which made the first measurements of temperature fluctuations in the microwave background radiation and set the stage for later measurements by the recipients of the Dan David Prize. Among his many awards are the Gruber Prize, the Einstein Medal of the Albert Einstein Society, and the Department of Energy’s Ernest O. Lawrence Award. He is a member of the National Academy of Sciences.