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
Ana Raspini

17. Juni 2026 16:30 Uhr

Physikalisches Institut, INF 226, K 1-3

Quantum vortices in Fermi superfluids: Structure, dynamics, and dissipation

Prof. Dr. Gabriel Wlazlowski , Faculty of Physics, Warsaw University of Technology

Quantum vortices are among the most prominent examples of topological excitations in superfluids. They arise in both bosonic systems, such as superfluid helium-4 and atomic Bose–Einstein condensates, and in fermionic systems, including superfluid helium-3, metallic superconductors, and neutron matter. While topology constrains many of their properties, key aspects of vortex behavior are governed by their internal structure, which depends on quantum statistics. In this seminar, I will review recent studies of quantum vortices in Fermi superfluids and contrast them with their bosonic counterparts. Particular attention will be given to the evolution of vortex core structure across the BCS–BEC crossover, spanning the transition from weak to strong coupling. I will then discuss how these structural changes influence vortex dynamics, focusing on the emergence of vortex inertia in Fermi systems and on microscopic mechanisms responsible for dissipation in their motion. The discussion will be supported by numerical results from density functional theory for Fermi superfluids, along with comparisons with experimental results for ultracold Fermi gases.

 PreTalk: Ekaterina Vlasiuk (Institute for Theoretical Physics, Uni Heidelberg): "Enhancing superconductivity using thermal bosons"