Astrophysics Experimentalist

Bright gamma ray burst confounds models of black hole birth

March 28, 2023

Diagram of a gamma ray emission emerging from a black hole showing the different types of energy in the afterglow

Last October, following one of the brightest flashes of gamma rays ever observed in the sky, telescopes around the world captured a wealth of data from an event that is thought to herald the collapse of a massive star and the birth of a black hole.

But that fire hose of data demonstrated clearly that...

LuSEE-Night will attempt first-of-its-kind measurements of the Dark Ages of the Universe.

March 20, 2023

Image of a lunar lander with different components, on the moon

NASA and the Department of Energy (DOE) are working together to develop a science instrument that will survive the harsh and unforgiving environment of the lunar surface at night on the far side of the Moon to attempt first-of-its-kind measurements of the Dark Ages of the Universe. The instrument, named the Lunar Surface Electromagnetics Experiment – Night (...

Mark Strovink, Professor Emeritus

Professor Emeritus

Mark Strovink, Ph.D. 1970 (Princeton). Joined UC Berkeley faculty in 1973 (Professor since 1980). Elected Fellow of the American Physical Society; served as program advisor for Fermilab (chair), SLAC (chair), Brookhaven, and the U.S. Department of Energy; served as D0 Physics Coordinator (1997 and 1998).

Research Interests

After 40 years in elementary particle physics, in late 2004 I turned my attention to the unexplained force that accelerates the universe's expansion. As an experimentalist, I am interested in understanding how best to standardize Type Ia supernovae (SNe) as...

William Holzapfel, Professor of Physics

Professor

I was born March 15, 1965 in Pittsburgh PA. After surviving an early program of experimentation with motorcycles and explosives, I went on to receive a B.A. in physics from Rensselaer Polytechnic Institute in 1987. My graduate studies were completed in 1996 with a Ph.D. in physics from Berkeley. I was then a Fermi-McCormick fellow at the University of Chicago until I joined the faculty in 1998.

Research Interests

My primary research interests are in the measurement and interpretation of anisotropies of the cosmic microwave background (CMB). Primary anisotropies of the CMB provide a...

Adrian Lee, Professor of Physics

Professor

Adrian Lee joined the faculty in July 2000. He received his B.A. in physics from Columbia University in 1986 and his Ph.D. from Stanford University in 1993. At Stanford, he worked with Blas Cabrera on the early development of an experiment to detect non-baryonic dark matter. Following graduate school, Lee became a postdoctoral fellow at Stanford Medical School, where he worked on mapping functions in the human brain using magnetic resonance imaging. Subsequently, from 1994 to 2000, he did postdoctoral work at U.C. Berkeley with Paul Richards measuring spatial anisotropy in the 2.7 K cosmic...

Matt C. Pyle, Assistant Professor

Assistant Professor, Michael M. Garland Chair

Matt Pyle received B.S. in Physics (2001) and B.E. in Aerospace Engineering (2002) from the University of Notre Dame, and a Ph.D. in Physics from Stanford University (2012). Subsequently, he crossed the bay and was a postdoctoral researcher at Berkeley. He joined the Berkeley Physics faculty as the Garland Assistant Professor in 2015.

Research Interests

Many of the questions that we would like to ask about the nature of the universe today, for example "could dark matter be composed of particles with mass less than that of a proton?", are simply impossible to answer with present...

Stuart Bale, Professor of Physics

Professor

Stuart D. Bale received B.A. and Ph.D. degrees from the University of Minnesota in 1989 and 1994, respectively. After three years of postdoctoral work at Queen Mary College, University of London, he came to a research position at the Space Sciences Laboratory (SSL) at Berkeley. He joined the Physics faculty in 2004 and is the Director of SSL. He has held visiting appointments at the Observatoire de Paris, Meudon (Univ. Paris VII), LPCE/CNRS in Orleans, France, the University of Sydney, and Imperial College and Queen Mary University London. He is a recipient of the 2003 Presidential Early...

Victoria Xu

Assistant Professor

Victoria Xu received her B.S. in Physics from UC Santa Barbara, and her Ph.D. in Physics from UC Berkeley. For her thesis, she worked with Professor Holger Müller on trapped cavity atom interferometers for precision measurements and fundamental physics. She then joined the MIT LIGO Laboratory as a Postdoctoral Associate, where she worked on commissioning the frequency-dependent squeezing upgrade for broadband quantum enhancement of the LIGO gravitational-wave detectors. In January 2025, Victoria returned to Berkeley as an Assistant Professor in Physics.

Select Publications

"Advanced...

Raúl Briceño & Raffaella Margutti receive PECASE Award

January 17, 2025
Raul Briceno and Raffaela Margutti

Assistant Professor Raúl Briceño and Associate Professor Raffaella Margutti

Two Berkeley Physics faculty members were among the nearly 400 scientists and engineers awarded by President Biden to receive the Presidential Early Career Award for Scientists and Engineers (PECASE), the highest honor bestowed by the U.S. government on outstanding scientists and engineers...