Speaker
Description
Vibration-driven relaxation is a key pathway in Exciton-Polariton Bose-Einstein condensation (BEC) in molecular systems. Here we ask whether a condensate can enable state-selective control of molecular dynamics. We argue that its delocalized, strongly photonic character reduces the number of S₁ excitons available per molecule, thereby suppressing reactions such as isomerization or intersystem crossing, that proceed from the same state. We develop a model for polariton condensates with an additional decay channel related to a chemical reaction. Coupled cavity, exciton and phonon modes with Lindblad decay channels reduce, via a cumulant expansion, to a system of ODEs with no free parameters. Screening candidate molecules against their photophysical and chemical properties revealed tighter requirements and the rarity of comparable fluorescence and reaction rates, with phthalocyanines as promising candidates. We also investigate a two-component molecular system where the first component undergoes polariton BEC and controls the reaction rate of a second one.
Other Fields of Research (Track) for Abstract
Optics, Atomic and Molecular Physics
| Nature of work | Theoretical |
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