Bryn Mawr College
|Research specialty||Degree type|
(Final degree/Enroute to PhD)
|Atomic, Molecular, & Optical Physics||Experimental||Both|
|Condensed Matter Physics||Experimental||Both|
|Cosmology & String Theory||Theoretical||Both|
|Plasma and Fusion||Experimental||Both|
Cosmology & String Theory
String theory and its applications to quantum field theory, cosmology, and particle physics.
Galaxy Evolution & Dynamics.
Evolution of galaxies through internal dynamical processes. Use analytic arguments and simulations to explore the orbital response to non-axisymmetric structures in the disk, like spiral arms, a bar, giant molecular clouds, or dark matter substructure. Resonant response, the nature of transient spiral structure, and the emergence of major structural components of the galaxy. Orbital stability and chaos. Kinematic heating.
Atomic, Molecular, & Optical Physics
Resonant energy transfer in ultra-cold samples of highly excited atoms using laser cooling and trapping techniques to prepare and manipulate the atomic sample and study the extremely long-range many-body interactions that result when the atoms are excited to weakly bound states.
Laser-based studies of atomic and molecular excited-state structure and decay dynamics, including photoionization, autoionization, predissociation, and photodissociation; non-linear optical techniques, including multi-photon excitation and detection, laser-induced grating spectroscopy, degenerate four-wave mixing, and vacuum ultraviolet light generation.
Nuclear spin relaxation in solids (NMR) using H-1 and F-19 solid-state NMR relaxation studies in organic molecular solids and modeling the motion with knowledge of the equilibrium structure. Collaborators are at the University of California at San Diego (X-ray diffraction) and Chengdu, China (electronic structure calculations).
Condensed Matter Physics
Fabrication, characterization, and application of nanoscale materials, including templated electrochemical deposition of nanoscaled materials for energy and medical applications, time-resolved photoemission electron microscopy imaging of spin dynamics in magnetic nanostructures, and X-ray magnetic circular dichroism study of multi-ferroic materials. Synchrotron X-ray-based experiments are carried out at the Advanced Photon Source at Argonne National Laboratory.
Plasma and Fusion
Study of magnetohydrodynamic (MHD) turbulence in a laboratory plasma device. Analysis of fluctuations in magnetic field, fluid flows, density, and temperature of plasma is conducted using a wide variety of time-series and statistical techniques including spectral decomposition, wavelets, probability distribution functions, temporal and spatial correlations, conditional averaging, and permutation entropy/statistical complexity. Goals include understanding the mechanisms involved in energy transfer and energy dissipation in MHD turbulence and making comparisons to simulations and satellite observations of heliospheric turbulence (such as that found in the solar wind and magnetosheath). Studies of turbulent suppression and transport mechanisms in edge plasma relevant to magnetic confinement fusion are carried out on the Large Plasma Device (LAPD), an NSF User Facility at the University of California, Los Angeles.