Dmitry Budker’s research interests are related to the study of violation of discrete symmetries – parity, time reversal invariance, and permutation symmetry for identical particles - using the methods of modern atomic physics. In particular, he has been involved in exploring the rare earth elements - samarium, dysprosium and ytterbium - where enhancement of P and P,T violating effects occurs due to close proximity of states with opposite nominal parity. More recently, he has also been involved in experimental search for temporal variation of fundamental “constants,” as well as searches for a possible violation of Lorentz invariance and the Einstein’s Equivalence Principle. Such experiments involve many aspects and techniques of atomic physics, as well as of linear and nonlinear optics and spectroscopy. Some of the Budker group research involves experimental condensed-matter physics (for example, the study and application of the nitrogen-vacancy centers in diamond) and nuclear magnetic resonance (especially, the zero- and ultraslow-field NMR). Budker and his group are also studying applications of nonlinear optical phenomena in resonant vapors and in color centers in diamond to sensitive magnetometry. The group maintains a roughly 50-50 balance of fundamental-physics and applied projects.
Review article: Micah P. Ledbetter and Dmitry Budker, Zero-field nuclear magnetic resonance, Physics Today 66(4) April 2013, pp. 44-49.