The Heidelberg Center for Quantum Dynamics

The Heidelberg Center for Quantum Dynamics (CQD) is devoted to fundamental questions concerning the dynamics of quantum systems at the borderline between few-body and many-body physics.

The Center provides an umbrella organization across the Departments of the University and the Max-Planck Institutes in Heidelberg.

The Heidelberg Center for Quantum Dynamics is open for all scientists with ideas and enthusiasm and encourages collaborative research among its members. It offers incentive funding for scientific high-risk, high-gain projects in order to facilitate the acquisition of third-party funding.

To reach its goals it supports young scientists at the early stage of their career and strengthens the scientific infrastructure by providing subsidiary funds. CQD invites international guests for scientific exchange and sponsors scientific workshops and conferences.

The bi-weekly Colloquium on Atomic, Molecular and Quantum Physics is co-organized by CQD.

The Center furthermore cooperates with the Heidelberg Graduate School on Fundamental Physics and the Max-Planck International Research School on Quantum Dynamics in Physics, Chemistry and Biology.

The Center is coordinated by an Executive Board consisting of representatives of the participating departments and institutes.

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Prof. Dr. M. Weidemüller
Physikalisches Institut
Im Neuenheimer Feld 226
69120 Heidelberg
 
06221-54 19470
Ferman Alkasari

29. Oktober 2025 16:30 Uhr

INF 226, K1-3 (Goldbox)

Exploring many-body physics with extended-range interactions

Dr Pascal Weckesser, Max Planck Institute of Quantum Optics

 PreTalk: “Quantum droplets in Bose-Fermi mixtures”, Olivier Bleu, ITP, Heidelberg University

4. November 2025 14:15 Uhr

Kirchhoff-Institut für Physik, INF 227, Seminar Box 2

Josephson supercurrents and vortex dynamics in binary Bose-Einstein condensates

Dr. Alice Bellettini, Department of Applied Science and Technology, Politecnico di Torino, Italy

Quantum bosonic gases, due to their manipulability, provide the perfect platform for observing macroscopic quantum many-body phenomena. These can be for example quantum vortices (“topological defects”), being the hallmark of superfluidity, or Josephson supercurrents. Such collective effects have been recently employed in the context of quantum simulation and atomtronics. Here, I will present my research on the properties of massive quantum vortices in different configurations, and on vortex-supported supercurrents.
I will go through the inertial effects governing the massive vortex dynamics, to then focus on dipole scattering processes and on Josephson supercurrents as well as self-trapping effects in two- and many-vortex systems. Finally, I will conclude with an overview of the open questions on the topic.