Exploring quantum solids with femtosecond real-time techniques

Datum

14.08.2013

Zeit

16:00 - 17:00

Sprecher

Jure Demsar

Sprache

en

Hauptthema

Physik

Andere Themen

Physik

Host

QSOE13

Beschreibung

In recent years we are experiencing major advancements in femtosecond time-resolved methods. These techniques render access to the time-evolution of the complex dielectric function from sub-terahertz frequencies to ultraviolet, to the dynamics of changes in the electronic band structure and distribution using time and angular resolved photoemission, or to the underlying structural dynamics via femtosecond time-resolved X-ray or electron diffraction. Such methods provide unique information on the nature and dynamics of low energy excitations,1,2 on the coupling strengths between different degrees of freedom,3,4 and can be used also to control the competing/cooperating order parameters.4,5 Following an introduction to the techniques, I will present some recent studies on order parameter dynamics in superconductors and density wave systems.

Letztmalig verändert: 14.08.2013, 09:49:20