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arXiv · 2209.06593

Theory of nuclear motion in RABBITT spectra

Serguei Patchkovskii·Jakub Benda·Dominik Ertel·David Busto
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Abstract

Reconstruction of attosecond beating by interference of two-photon transitions (RABBITT) is a powerful photoelectron spectroscopy, offering direct access to internal dynamics of the target. It is being increasingly applied to molecular systems, but a general, computationally tractable theory of RABBITT spectra in molecules has so far been lacking. We show that under quite general assumptions, RABBITT spectra in molecules can be expressed as a convolution of the vibronic cross-correlation functions and two-electron photoionization matrix elements. We specialize the general expressions to the commonly-encountered special cases. We expect our theory to enable accurate modeling and interpretation of molecular RABBITT spectra in most medium-sized molecules.

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Serguei Patchkovskii, Jakub Benda, Dominik Ertel, David Busto. 2022-09-14. Theory of nuclear motion in RABBITT spectra. https://doi.org/10.1103/physreva.107.043105

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