Prof. Chapman's laboratory investigates fundamental topics in contemporary quantum mechanics by
manipulating the quantum behavior of single atoms and photons. This research employs lasers to
confine and cool atoms to micro-Kelvin temperatures inside a vacuum chamber. These samples then
provide a starting point for quantum studies including fundamental atom-photon interactions and
atom optics and interferometry involving the manipulation of the atomic de Broglie wave.
This research employs state-of-the-art laser and optical technologies, as well as high-speed
electronics and vacuum technology.
Prof. Kuzmich's laboratory is investigating topics in atomic physics, quantum metrology, and
quantum information. The research utilizes samples of ultra-cold atomic gases suspended in high
vacuum using electromagnetic fields. A subject of current interest is studies of multi-atom
entanglement and its applications to scalable quantum communication networks.
Professor Raman's laboratory investigates quantum mechanics on macroscopic scales using ultralow
temperature gases. Atoms are cooled by laser light and are suspended inside a vacuum chamber
forming a Bose-Einstein condensate at about one millionth of a degree above absolute zero. This
quantum gas has dramatic properties such as superfludity and can form quantized vortices. His work
focuses on tailoring matter wave properties using magnetic and optical fields to exhibit novel
quantum effects. This research combines techniques from lasers and optics with electronics and
The spectacular development of new sources of electromagnetic radiation, in particular the rapid
development of laser technology, has resulted in a considerable number of studies of photon-atom
interactions. This study of light-matter interaction is founded on the precise theory of quantum
electrodynamics, although the spectrum of interest to atomic physicists lies mostly in the low
energy nonrelativistic regime. In contrast to situations in high energy or particle field theory,
the reaction rates in atomic physics can be high due to both the resonant behavior of the atom and
the coherent nature of laser light. New methods have been developed to obtain more precise
information about the structure and dynamics of atoms and molecules, for controlling their internal
and external degrees of freedom, for modifying the chemical reaction rates, and for generating new
types of radiation.
The research interests of Dr. You includes a range of topics in light/matter interactions (Atomic,
Molecular, and Optical physics).
In recent years the group's research has focussed on several themes of ultra-low temperature atomic
physics and quantum optics. Recent projects include studies of atomic Fermi gas transport in
optical lattices, spin squeezing of atomic ensembles and Bose-Einstein condensate mixtures, and the
role of quantum fluctuations in the temporal break up of spatial solitary waves in nonlinear
optical parametric processes.
The structure, dynamics, and properties of materials are governed by microscopic-level interactions
and processes. Basic understanding of material processes requires knowledge of the underlying
energetics and the fundamental interaction, transport, growth, and transformation mechanisms on a
Research in the Center for Computational Materials Science focuses on the development of analytical
models and novel computer-based classical and quantum molecular dynamics simulations for
investigations of a wide range of condensed matter phenomena, such as the following: equilibrium
structure and the dynamics of solid surfaces, equilibrium and nonequilibrium growth processes at
solid-liquid interfaces and phase transformations, epitaxy and melting; heterogeneous (surface)
reaction dynamics; the formation and properties of glasses; surface diffusion; atomic-scale
friction and lubrication; confined complex fluids; electron localization and excitation dynamics of
small clusters; and the dynamics of cluster fission.