ATOM23 Colloquium: Attosecond Physics: 2023 Nobel Prize Achievements and Unraveling Quantum Insights

Datum

27.11.2023

Zeit

16:30 - 17:30

Sprecher

Prof. Lars Bojer Madsen

Zugehörigkeit

Aarhus University

Serie

MPI-PKS Kolloquium

Sprache

en

Hauptthema

Physik

Andere Themen

Physik

Beschreibung

In my talk, I will start by giving an overview of this year’s Nobel Prize in Physics awarded to Anne L'Huillier, Ferenz Krausz and Pierre Agostini “for experimental methods that generate attosecond pulses of light for the study of electron dynamics in matter”. Following their pioneering works, we have witnessed a revolutionary development of attosecond light sources, and methods to conduct attosecond time-resolved measurements. These now allow researchers to explore electron dynamics at this timescale, including charge migration in molecules and ultrafast processes in semiconductors and dielectrics. While experimental techniques have progressed rapidly, theory has not developed at the same pace. Insights that can be derived from present-day theory formulated in terms of single-electron and classical modeling are reaching their barrier. This situation impedes a deeper understanding of the quantum motion of electrons in matter and the quantum properties of light. Therefore, in the second part of my talk, I will discuss the challenges faced by current theoretical models and discuss ongoing efforts to enhance them. Three key areas of focus include (i) Electron-electron correlations: Exploring ways to incorporate electron-electron correlation in theoretical frameworks and identify their effect, (ii) Relativistic corrections: accounting for relativistic corrections is needed to provide a more accurate description of electron motion (iii) Beyond classical treatment of light: Going beyond a classical description of the electromagnetic fields to better capture the quantum nature of light, and explore the merging of quantum optics and strong-field laser physics.

Letztmalig verändert: 27.11.2023, 07:37:39