Center for Complex Quantum Systems

Aarhus University Seal / Aarhus Universitets segl

CCQ is a Centre of Excellence funded by the Danish National Research Foundation. The Center hosts five groups at Aarhus University, who develop theory and experiments to investigate, control and harness the dynamics and collective quantum states of interacting atoms and light.

 

09.07.2021 | Forskning

Giant excitons in interaction

Recent articles in Nature Communications co-authored by Center leader Thomas Pohl, demonstrates how excited quantum states can be used to control and exploit strong interactions in semiconductors.

K-atoms (red balls) are flipped by a RF-pulse from a state |2> that does not interact with a surrounding Fermi gas (blue) to a state |1> that does. The properties of the interacting state were explored as a function of its concentration.

07.07.2021 | CCQ

Stability and breakdown of Fermi polarons in a strongly interacting Fermi-Bose mixture

In a recent collaboration between Georg M. Bruun and the group of Rudi Grimm (Innsbruck), the effective interaction between Fermi polarons was explored.

22.06.2021 | Forskning

Charged Polarons and Molecules in a BEC

Recent theoretical paper in Physical Review Letters by CCQ’s Esben Rohan Christensen and Georg M. Bruun, and former CCQ assistant professor Arturo Camacho-Guardian, who answer the question of what happens when you put an ion into a BEC.

tir 24 aug
09:30-17:00 | VejleFjord
CCQ Retreat
Revideret 09.07.2021 - 
Line Lindskov Lassen