Theory of nuclear motion in RABBITT spectra

Autor: Serguei Patchkovskii, Jakub Benda, Dominik Ertel, David Busto
Rok vydání: 2023
Předmět:
Zdroj: Physical Review A. 107
ISSN: 2469-9934
2469-9926
DOI: 10.1103/physreva.107.043105
Popis: 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.
11 pages, no figures
Databáze: OpenAIRE