title: Overlapping resonances in the coherent control of radiationless transitions: internal conversion in pyrazine.
abstract: Coherent control of radiationless transitions is developed and applied to internal conversion. Conditions for active versus passive control are described and overlapping resonances are shown necessary for the phase control of radiationless transitions in molecular systems. Applications to pyrazine show the possibility of extensive control via optimized state preparation, as well as the significant role of overlapping resonances, even in the evolution of single vibrational states in S2.
authors.affiliation: Chemical Physics Theory Group, Department of Chemistry, and Center for Quantum Information and Quantum Control, University of Toronto, Toronto, Ontario M5S 3H6, Canada.
authors.forename: P S
authors.initials: PS
authors.lastname: Christopher
authors.forename: Moshe
authors.initials: M
authors.lastname: Shapiro
authors.forename: Paul
authors.initials: P
authors.lastname: Brumer