Marianna S. Safronova

Photo of Marianna S. Safronova

Marianna Safronova received her Ph.D. in physics from the University of Notre Dame in 2001 and joined NIST in 2001 as a guest researcher. In 2003, she accepted a faculty position at the University of Delaware in the Department of Physics and Astronomy. She is also an Adjunct Fellow at the Joint Quantum Institute, NIST and University of Maryland. Her research interests include the study of fundamental symmetries, atomic clocks, searches for the variation in fundamental constants, the study of long-range interactions, optical cooling and trapping of neutral atoms, and the development of high-precision methods for calculating atomic properties. She is a Fellow of the American Physical Society and a member of the Editorial board of the Physical Review A.


Time Trials for Fundamental Constants

Single-ion clocks yield new limits on how much the proton-to-electron mass ratio and the fine structure constant change over time. Read More »