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John J. Bollinger (Assoc)
Physicist
John Bollinger is a staff scientist and current group leader of the NIST Ion Storage Group in the Time and Frequency Div. of the National Institute of Standards and Technology (NIST). He was a principal on early NIST studies employing laser-cooled ions for microwave frequency standards and then carried out studies on the collective and cold plasma behavior of laser-cooled ion crystals in Penning traps, including precise characterization of the plasma modes, crystal equilibria, and structural phase transitions. His recent work has focused on the use of trapped ion crystals of several hundred ions confined in Penning ion traps for quantum information studies, including quantum simulation and quantum metrology. John received undergraduate degrees in physics and mathematics from Cornell University in 1974, and a Ph.D. in physics from Harvard University in 1981. John is a Fellow of the American Physical Society (APS). Recent service includes serving on the chair line (2017-2021) of the Div. of Atomic, Molecular, and Optical Physics (DAMOP) of APS.