School of Humanities and Sciences
Showing 1-10 of 27 Results
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Bruce Macintosh
Professor of Physics
BioBruce Macintosh's research focusses on the study of extrasolar planets, in particular the study of such planets through direct imaging, and on using adaptive optics to shape the wavefronts of light for a variety of applications. Direct imaging of extrasolar planets involves blocking, suppressing, and subtracting the light of the bright parent star so that a planet hundreds of thousands of times fainter can be seen and studied in detail. Prof. Macintosh is the Principal Investigator of the Gemini Planet Imager http://planetimager.org/ ,an advanced adaptive optics planet-finder for the Gemini South telescope,. He also leads a Science Investigation Team for the coronagraph instrument on the WFIRST mission, focused on imaging and spectroscopy of extrasolar planets. He serves as Deputy Director of KIPAC.
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Professor Macintosh believes strongly in making astronomy and physics more inclusive, diverse and supportive. He currently chairs the Physics Department's Equity and Inclusion Committee https://physics.stanford.edu/about/equity-and-inclusion/committee and is active in science policy including the Astronomy and Astrophysics 2020 Decadal Survey. -
Thomas Markland
Associate Professor of Chemistry
Current Research and Scholarly InterestsOur research centers on problems at the interface of quantum and statistical mechanics. Particular themes that occur frequently in our research are hydrogen bonding, the interplay between structure and dynamics, systems with multiple time and length-scales and quantum mechanical effects. The applications of our methods are diverse, ranging from chemistry to biology to geology and materials science. Particular current interests include proton and electron transfer in fuel cells and enzymatic systems, atmospheric isotope separation and the control of catalytic chemical reactivity using electric fields.
Treatment of these problems requires a range of analytic techniques as well as molecular mechanics and ab initio simulations. We are particularly interested in developing and applying methods based on the path integral formulation of quantum mechanics to include quantum fluctuations such as zero-point energy and tunneling in the dynamics of liquids and glasses. This formalism, in which a quantum mechanical particle is mapped onto a classical "ring polymer," provides an accurate and physically insightful way to calculate reaction rates, diffusion coefficients and spectra in systems containing light atoms. Our work has already provided intriguing insights in systems ranging from diffusion controlled reactions in liquids to the quantum liquid-glass transition as well as introducing methods to perform path integral calculations at near classical computational cost, expanding our ability to treat large-scale condensed phase systems.
