25th European Conference on Few-Body Problems in Physics

Session

Monday Plenary Session (AudiMax)

31 Jul 2023, 09:00

AudiMax (Alte Mensa)

Conveners

Monday Plenary Session (AudiMax)

• Sonia Bacca

19. Dynamics of weakly-bound molecules

Doerte Blume (University of Oklahoma)

31/07/2023, 09:00

Invited Talk

The helium dimer is extremely weakly bound. Specifically, two bosonic helium-4 atoms support a single bound state with binding energy of approximately 1.5mK; no rotationally excited states are supported. The mixed isotope dimer (one helium-4 atom and one helium-3 atom), in contrast, does not support a bound state at all. In the trimer sector, three helium-4 atoms support two bound states. The...

151. Few-body systems under confinement

Alejandro Saenz (Humboldt-Universität zu Berlin)

31/07/2023, 09:35

Invited Talk

With the experimental realization of strongly confined atomic and molecular systems using, for example, optical lattices or tweezers the modification of the few-body physics due to tight confinement is of increasing importance, since the interaction and confinement lengths
can become comparable in these systems. The physics may fundamentally change, if the confinement leads to effectively...

17. Cold Collisions of Ultracold Atoms in a Miniature Laser-based Accelerator

Niels Kjærgaard (University of Otago)

31/07/2023, 10:10

Invited Talk

I present results from experiments exploring two types of scattering resonances in the collision of ultracold clouds of atoms — shape resonances$^1$ and Feshbach resonances$^{2,3}$. Using a laser-based accelerator that capitalizes on the energy resolution provided by the ultracold atomic setting, we unveil these resonance phenomena in their quintessential form by literarily photographing the...