Research Specialization High-precision laser spectroscopy of atoms; Experimental tests of Quantum Electrodynamics and the Standard Model; Antimatter, especially antihydrogen and positronium; Exotic states of matter; Laser cooling and atom trapping. I conduct antimatter research with the aim of producing and trapping large numbers of antihydrogen atoms. Comparing the atomic structure of antihydrogen and hydrogen provides […]
Research Specialization Distant galaxies and clusters of galaxies; Formation and evolution of galaxies, especially environmental influences. Most of my work is on how distant galaxies form and evolve, and how that evolution is related to their larger scale environment. Because light is redshifted by the expansion of the Universe, studies of distant galaxies almost always […]
Research Specialization Experimental tests of the Standard Model of particle physics; Matter/Antimatter asymmetry; Antihydrogen; Physics education. I am an experimental high-energy particle physicist. Fundamentally, my research is aimed at testing the Standard Model of particle physics. The Standard Model is a fully predictive theory that describes all matter in terms of 12 elementary particles (quarks […]
Research Specialization Quantum chromodynamics (QCD); Lattice quantum field theories; Physics beyond the Standard Model, including dark matter. Inside the protons and neutrons of every atom's nucleus, there are quarks. The strong force that is responsible for the perpetual confinement of quarks is described by Quantum Chromodynamics (QCD). My recent research has combined theoretical methods with […]
Research Specialization Wave nature of atoms, especially coherent transient phenomena; Laser cooling and trapping of neutral atoms; Atom interferometry; High-precision measurements of atomic properties; Gravimetry; Laser-based instrumentation. My research involves studies of coherent transient phenomena in atomic samples such as laser-cooled atoms. Some of this work involves precision measurements using atom interferometry. Applications of this […]
Research Specialization Interactions of atomic and molecular few-body systems with particles and fields; Ionization and fragmentation of molecules; Density functional theory; Time-resolved quantum dynamics. My research is concerned with the question of how atomic and molecular few-body systems respond to perturbations exerted on them by impinging particles and external fields. Quantum dynamics induced by collisions […]
Research Specialization Collisions of ions with atoms and molecules; Ionization and electron capture; Interactions of matter with strong laser fields; Quantum optics. I study interactions of atoms and simple molecules in collisions with ions or in exposure to strong laser fields by theoretical and computational methods. My particular interests are in the areas of multiple […]
Research Specialization High-precision laser spectroscopy of atoms; Experimental tests of Quantum Electrodynamics and the Standard Model; Antimatter, especially antihydrogen; Proton radius; Laser cooling and atom trapping. I employ lasers to make high-precision measurements of atomic properties to test the predictions of Quantum Electrodynamics and the Standard Model of particle physics. Currently, I am studying atomic […]
Research Specialization Neutrino masses and mixing; Neutrino interactions with nuclei. My research aims to understand the neutrino, the most abundant particle in the universe that has any mass. Because the neutrino almost never interacts, we know very little about it. However, that same characteristic also means that we can study them by making a beam […]
Research Specialization Dark matter phenomenology, especially direct dark matter detection, local dark matter distribution, dark halos in cosmological simulations, and dark substructures; Astroparticle physics. My research is focused on dark matter phenomenology, and more specifically on developing various strategies to significantly improve our knowledge of the dark matter distribution in our Galaxy. Understanding the nature […]