# Time delay in XUV/IR photoionization of H$_2$O

## TL;DR

This paper presents a computational approach combining coordinate scaling and density functional theory to analyze time delays in XUV/IR photoionization of water molecules, providing insights into ultrafast electron dynamics.

## Contribution

It introduces a novel method for solving the time-dependent Schrödinger equation for molecules under combined XUV and IR pulses, specifically applied to water and hydrogen.

## Key findings

- Determined time delays in water and hydrogen photoionization.
- Validated the computational approach against experimental data.
- Provided detailed temporal electron dynamics in molecular ionization.

## Abstract

We solve the time-dependent Schr\"odinger equation describing a water molecule driven by a superposition of the XUV and IR pulses typical for a RABBITT experiment. This solution is obtained by a combination of the time-dependent coordinate scaling and the density functional theory with self-interaction correction. Results of this solution are used to determine the time delay in photoionization of the water and hydrogen molecules.