Charge Migration & Attochemistry

Charge migration refers to the ultrafast redistribution of electronic density following photoionization or excitation and represents a central theme of our research program. By shaping the early-time redistribution of electronic charge within a molecule on attosecond to femtosecond timescales, charge migration has the potential to influence chemical reactivity at its earliest stage, opening the door to controlling photochemistry at the level of electronic motion (“attochemistry”). In our group, we develop theoretical modeling, time-dependent quantum chemistry methods, and conceptual scheme design to understand how coherent electronic wave packets evolve in molecular systems and how it influence reactivity.

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