Biosketch

After graduating from the University of North Carolina at Chapel Hill with a degree in Chemical Physics, I was a NAS-NRC Posdoctoral Fellow at the National Bureau of Standards (NBS), working with Dr. Frederick H. Mies in theoretical molecular physics. After a short term as a staff physicist with the Plasma Physics Division of the Naval Research Laboratory, I returned to NBS (later renamed NIST, National Institute of Standards and Technology) as a research scientist in the Quantum Chemistry Group of the Physical Chemistry Division. Between 1995 and 2003, I was the group leader of the Quantum Processes Group of the Atomic Physics Division and became a NIST Fellow (a senior research scientist) in 2003. I was one of the original fellows of the Joint Quantum Institute (JQI) of NIST and the University of Maryland, founded in 2007. After retirement from NIST in 2013, I have been an Emeritus Fellow of the JQI. Many collaborations mark my career: as of 2020, I have had 382 co-authors on 264 peer-reviewed papers from 138 different institutions or universities in 20 different countries from North and South America, Europe, Asia, and Australia. In 2004, I received the Davisson-Germer Prize of the American Physical Society, and in 2015, the William F. Meggers Award of the Optical Society of America.

Research Interests

My research involves theoretical atomic, molecular, and optical physics applied to a variety of research areas, focusing on numerical methods to calculate the full quantum dynamics of atomic and molecular systems with additional analysis through approximate or analytic models. Work in the 1970s involved atmospheric and astrophysical problems. Work in the 1980s centered on issues relating to high-energy lasers and collisions in light fields. Since the development of laser cooling at NIST in the mid-1980s, I have concentrated on quantum phenomena associated with cold atoms, molecules, and ions. This includes the quantum dynamics of cold collisions: their precise characterization; their control by magnetic, electric, or electromagnetic fields; their role in quantum gases and in lattice structures with tight confinement; and the production and properties of ultra-cold molecules and their chemical dynamics. I have co-authored 6 review articles that discuss these topics. This work has continued since retirement from NIST in 2013, with 40 papers published during 2014-2025 since retiring.

Photo credit: Bailey Bedford, Science Communicator, University of Maryland Department of Physics

Membership Type

Member

Election Year

2023

Primary Section

Section 13: Physics