Assistant Professor of Chemistry
Ph.D. 1995, University of Utah
uantum dynamics of many-body systems; development of eective numerical methods
based on semi-classical dynamics; applications to non-linear spectroscopy in the condensed phase.
MISHA OVCHINNIKOV completed his sixth year of teaching and research in theoretical physical chemistry in the Depart- ment of Chemistry at UR. Misha’s research primarily focuses on the development of new methods for solving many-body quantum dynamics problems. The Ovchinnikov group is devel- oping effective numerical methods that can calculate quantum mechanical time evolution based on its semiclassical represen-
tation by classical trajectories. During the past year, research has been focused on the development of a new method, the so-called Coherent State Path Integral (CSPI) semi-classical dynamics or “complex trajectory” method. The Ovchinnikov group success- fully applied this method to a number of test problems and is now using it to solve exciting problems in quantum mechanics.
Lewis J. Rothberg
Professor of Chemistry
Ph.D. 1983, Harvard University
RESEARCH INTERESTS Physical chemistry: metal nanoparticle-enhanced molecular spectroscopy, biomolecular sensing, photophysics of conjugated organic materials.
LEWIS ROTHBERG’s group is growing once again and some- times Lewis has a hard time keeping up with the rapid pace of progress. Senior graduate students Steve Paquette and Millard Wyman are both generating exciting new data. Steve is both deep- ening our understanding of how metal-nanoparticle interactions with molecules change their spectroscopy and demonstrating practical consequences such as enhanced energy transfer between chromophores and suppression of photobleaching in dyes. Steve’s energy has allowed him to carry o another project in addition to his thesis work, doing what we think will be landmark studies in how packing of conjugated chromophores aects their photo- physics. at work has been made possible by terric collaborators in the Department (Justin Rhinehart and Prof. Dave McCamant)
and at University of Delaware (Onur Kas and Prof. Kristi Kiick). Millard has initiated collaborative work with Prof. Ulli Scherf at Universität Wuppertal to quantify charge generation and recom- bination processes in conjugated polymeric systems of interest for organic electronics. Both continue to impress with their indepen- dence and fearlessness in the lab and are beginning to present the fruits of their labor at professional meetings and in publications. Meanwhile, ED NELSON PH.D. ’09, PHYSICS successfully defended his thesis concerning the kinetics and thermodynamics of DNA adsorption. It was both experimentally and theoretically challenging work and has compelled us to completely reassess our thinking on the reasons single-stranded and double-stranded
DNA behave so dierently. continued on next page