Vibronic correlations in molecular strong field dynamics

Vibronic correlations in molecular strong field dynamics

We investigate ultrafast vibronic dynamics triggered by intense femtosecond infrared pulses in small molecules. Our study is based on numerical simulations performed with 2D model molecules, and analyzed in the perspective of the renown Lochfrass and Bond-Softening models. We give a new interpretati...

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Veröffentlicht in:arXiv.org 2024-03
Hauptverfasser: Labeye, Marie, Lévêque, Camille, Risoud, François, Maquet, Alfred, Caillat, Jérémie, Taïeb, Richard
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Mathematical models
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Lévêque, Camille
Risoud, François
Maquet, Alfred
Caillat, Jérémie
Taïeb, Richard
description We investigate ultrafast vibronic dynamics triggered by intense femtosecond infrared pulses in small molecules. Our study is based on numerical simulations performed with 2D model molecules, and analyzed in the perspective of the renown Lochfrass and Bond-Softening models. We give a new interpretation of the observed nuclear wave packet dynamics, with a focus on the phase of the bond oscillations. Our simulations also reveal intricate features in the field-induced nuclear motion that are not accounted for by existing models. Our analyses assign these features to strong dynamic correlations between the active electron and the nuclei, which significantly depend on the carrier envelope phase of the pulse, even for relatively ``long'' pulses, which should make them experimentally observable.
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title Vibronic correlations in molecular strong field dynamics
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