Many-body calculations on atomic systems exposed to extreme light-pulses


Project leader


Funding source

Swedish Research Council - Vetenskapsrådet (VR)


Project Details

Start date: 01/01/2017
End date: 31/12/2020
Funding: 3621000 SEK


Description

A key to understand many process that can lead to break-up of quantum systems is theinitial charge migration due to electron dynamics that follows directly after photon or particle impact, and which precedes nuclear motion. The extremely short laser pulses that are available today make now the study of dynamics driven by electron correlation within reach.

We want to build theoretical and computational tools for the interpretation and quantitative description of experimental observations with attosecond light sources. One important target here is the events following the creation of a core hole. Its sudden appearance, after absorption of an ultra-short pulse, will initiate screening and relaxation processes, mediated by electron-correlation. To eventually be able to understand the processes that follow in more complicated systems, we need first to understand the core-hole driven dynamics in isolated atoms. This is the focus of the first part of the present proposal.

In the second part of the proposal we are concerned with another line of light-source development: that which is leading to ever more intensive laser pulses, eventually requiring a description of relativistic light-matter interaction in the time-domain. The purpose here is to obtain a reliable and efficient method to solve the full-dimensional time-dependent Dirac equation for the intensities that soon are available experimentally.

Last updated on 2017-01-06 at 11:50