Jour Fixe

The STRUCTURES Jour Fixe is the central meeting point of STRUCTURES. Its talks cover the entire scientific breadth of STRUCTURES and aim at all members. The Jour Fixe takes place as a hybrid event.

You are interested in receiving announcements for the Jour Fixe or have questions? Feel free to write us at
office@structures.uni-heidelberg.de

Recent and Upcoming Talks

Winter Semester 2026/27

Nov 6
13:30
The formal semantics of general 'computing' processes (and how this connects to modeling multiscale dynamical systems in general)
Herbert Jaeger (U. Groningen)
Venue: TBA
Oct 30
13:30
TBA
Oct 23
13:30
From Turing patterns to black holes: a simulation-based inference of binary black hole populations using the Correlation Integral Likelihood
Alexey Kazarnikov & Stefano Rinaldi (U. Heidelberg)
Pretalk by Stefano Rinaldi starts at 1pm
Venue: Philosophenweg 12 gHS
Oct 16
13:30
Vortex filament reconnection in 3d critical Abelian Higgs models
Robert Jerrard (Toronto)
Venue: INF 205 Mathematikon (as part of the ANGEL seminar)

Summer Semester 2026

Jul 17
13:30
The Allen-Cahn equation with multiplicative oscillatory driving   [ Poster with Abstract and Zoom link ]
Olivier Pierre-Louis (Lyon University)
Pretalk starts at 1pm
Venue: Philosophenweg 12 gHS
Jul 10
13:30
No Jour Fixe
(due to Colloquium by Stefan Hollands)
Jun 26
13:30
No Jour Fixe
(due to Birthday Symposium for Ulrich Schwarz)
Jun 19
13:30
Large Language Models – are pretrained language correlations useful for physics?   [ Poster with Abstract and Zoom link ]
Caroline Heneka (ITP)
Pretalk by Daniel Schiller starts at 1pm
Venue: Philosophenweg 12 gHS
Jun 12
13:30
Cluster members only
STRUCTURES internal meeting
Venue: n.a.
Jun 5
13:30
Computing phase diagrams using a convex hull algorithm   [ Poster with Abstract and Zoom link ]
Cornelis Dullemond (ZAH)
Venue: Philosophenweg 12 gHS
May 29
13:30
No Jour Fixe
May 22
13:30
News from the STRUCTURES Office (and the YRC)
Sebastian Stapelberg, Fabius Krämer
Venue: Philosophenweg 12 gHS
May 8
13:30
EOFlows – a non-linear generalization of PCA   [ Poster with Abstract and Zoom link ]
Ullrich Koethe (IWR)
Pretalk by Armand Rousselot starts at 1pm.
Venue: Philosophenweg 12 gHS

Winter Semester 2025/26

Feb 6
13:30
On the Algebraic and Differential Architecture of the Two-Body Problem in General Relativity   [ Poster with Abstract and Zoom link ]
Radu Roiban (Penn State, ETH-ITS Zürich)
Venue: Philosophenweg 12 gHS
Jan 30
13:30
The generative renormalisation group or PIKs and how to find them   [ Poster with Abstract and Zoom link ]
Jan Pawlowski (U. Heidelberg)
Venue: Philosophenweg 12 gHS
Jan 22
16:15
Joint Event with the Mathematical Colloquium
*CANCELLED* Ilya Chevyrev (Trieste)
Venue: Hörsaal Mathematikon (Note the unusual date!)
Jan 16
13:30
Solving Inverse Problems in Astronomy with Invertible Neural Networks   [ Poster with Abstract and Zoom link ]
Victor Ksoll (ZAH)
Venue: Philosophenweg 12 gHS
Dec 12
13:30
Coarse notions in Geometric Group Theory   [ Poster with Abstract and Zoom link ]
*CANCELLED* Petra Schwer (IMa)
Venue: EINC, Oberstübchen, INF 225a
Dec 5
13:30
Quantum gravity - from fundamental questions to observational probes   [ Poster with Abstract and Zoom link ]
Astrid Eichhorn (ITP)
Venue: Philosophenweg 12 gHS
Nov 21
13:30
The Nonlinear Universe - Asymptotic Approaches to Cosmic Structures   [ Poster with Abstract and Zoom link ]
Sara Konrad (ITP)
Pretalk by M. Bartelmann starts at 1pm.
Venue: Philosophenweg 12 gHS
Nov 14
13:30
Internal Discussion
Manfred Salmhofer (U. Heidelberg)
Venue: Philosophenweg 12

Summer Semester 2025

Jul 25
13:30
Geometric Flows in Physics, Math, and Data   [ Poster with Abstract and Zoom link ]
Tim Laux (U. Heidelberg)
Venue: Philosophenweg 12
Jul 18
13:30
How does a random surface of large genus look like?   [ Poster with Abstract and Zoom link ]
Anja Randecker (U. Heidelberg)
Venue: Philosophenweg 12
Jul 11
13:30
HI across the Universe   [ Poster with Abstract and Zoom link ]
Henrik Beuther & Fabian Walter (U. Heidelberg)
Venue: Philosophenweg 12
Jul 4
13:30
Structures & Strategies: Statistical Perspectives on Generative Models and Stochastic Control   [ Poster with Abstract and Zoom link ]
Claudia Strauch (Uni HD)
Venue: Philosophenweg 12
Jun 27
13:30
Fluctuations and Criticality in Quantum Gases of Photons   [ Poster with Abstract and Zoom link ]
Julian Schmitt (U. Heidelberg)
Venue: Philosophenweg 12
Jun 20
13:30
Causality & Analyticity, a Match Made in the Upper Half-Plane   [ Poster with Abstract and Zoom link ]
Andrew Tolley (IC London)
Venue: Philosophenweg 12

Winter Semester 2023/24

Feb 9
13:30
The importance of active supermassive black holes in galaxy evolution   [ Poster with Abstract and Zoom link ]
Dominika Wylezalek
Pretalk by Pranav Kukreti at 1pm.
Venue: Hybrid: Online and in Large lecture hall
Feb 2
13:30
Geometric-harmonic data exploration   [ Poster with Abstract and Zoom link ]
Guy Wolf
Pretalk by Fred Hamprecht starts at 1 pm.
Venue: Hybrid: Online and in Large lecture hall
Jan 26
13:30
Geometric Learning via PDE-G-CNNs: Training of Association Fields   [ Poster with Abstract and Zoom link ]
Remco Duits
Venue: Hybrid: Online and in Large lecture hall
Jan 19
13:30
Probing entanglement in quantum processors with randomized measurements
Benoit Vermersch
Venue: Hybrid: Online and in Large lecture hall
Jan 12
13:30
Identities and Cultures in the Natural Sciences
Johan S. Bonilla Castro
Pretalk starts at 1 pm.
Venue: Hybrid: Online and in Large lecture hall
Dec 15
13:30
Experimental Activities in STRUCTURES
Selim Jochim et al.
Pretalk starts at 1 pm.
Venue: Hybrid: Online and in Large lecture hall
Dec 8
13:30
The Topological Data Analysis of Stratified Spaces
Lukas Waas & Tim Mäder
Venue: Hybrid: Online and in Large lecture hall
Dec 1
13:30
From Quantum Entanglement to Data-Driven Science and Engineering
Robert Scheichl (IMa, Uni Heidelberg)
Venue: Hybrid: Online and in Large lecture hall
Nov 17
13:30
Turbulence, Pebbles And Planetesimals: The Origin of Minor Bodies in The Solar System
Hubert Klahr (MPIA, Uni Heidelberg)
Pretalk starts at 1 pm.
Venue: Hybrid: Online and in Large lecture hall
Nov 3
13:30
On Accelerating Deep and Bayesian Neural Architectures.
Holger Fröning
Pretalk by Guido Kanschat starts at 1 pm.
Venue: Hybrid: Online and in Large lecture hall

Summer Semester 2023

Jul 7
13:30
The role of multiscale modeling in molecular discovery
Tristan Bereau
Venue: Hybrid: Online and in Large lecture hall
Jun 23
13:30
The quest for an unknown functional that we know must exist
Fred Hamprecht
Venue: Hybrid: Online and in Large lecture hall
Jun 9
13:45
3D Reconstruction of Interstellar Dust Distributions with Invertible Neural Networks
Victor Ksoll
Venue: Hybrid: Online and in Large lecture hall
May 26
13:30
(Hidden) Symmetries of Computational Problems.
Michael Walter
Pretalk starts at 1 pm.
Venue: Hybrid: Online and in Large lecture hall
May 5
13:30
Probabilistic hyperdimensional computing
Wolfram Pernice
Venue: Hybrid: Online and in Large lecture hall
Apr 28
13:30
Local minimizers of the interface length functional based on a concept of local paired calibrations
Tim Laux
Pretalk starts at 1 pm.
Venue: Hybrid: Online and in Large lecture hall
Apr 21
13:30
Transfer at Heidelberg University / Heidelberg University Publishing
Johanna Schwarz and Jochen Apel
Venue: Hybrid: Online and in Large lecture hall

Winter Semester 2022/23

Feb 10
13:30
Women in STEM – research insights and policy implications
Christiane Schwieren (AWI Heidelberg)
Venue: Hybrid: Online and in Great lecture Hall
Feb 3
13:30
Fullerenes and modular forms
Peter Smillie
Venue: Hybrid: Online and in Great lecture Hall
Jan 27
13:30
Learning the Universe with intensity mapping and computer vision
Caroline Heneka (ITP, Uni Heidelberg)
Venue: Hybrid: Online and in Great lecture Hall
Jan 20
13:30
Approximation Rates for Neural Operators
Jakob Zech (IWR, Uni Heidelberg)
Venue: Hybrid: Online and in Great lecture Hall
Jan 13
13:30
Connecting two-dimensional materials and ultracold atoms
Richard Schmidt (ITP, Uni Heidelberg)
Venue: Hybrid: Online and in Great lecture Hall
Dec 9
13:30
Surface dynamics in living systems
Anna Erzberger (EMBL)
Venue: Hybrid: Online and in Great lecture Hall
Nov 25
13:30
Probabilistic Cellular Automata for Fermionic Quantum Field Theories
Christof Wetterich (ITP, Uni Heidelberg)
Venue: Hybrid: Online and in Great lecture Hall
Nov 18
13:30
Constrained Optimization on Manifolds
Roland Herzog (IWR, Uni Heidelberg)
Venue: Hybrid: Online and in Great lecture Hall
Nov 11
13:30
Slowing Down Microwave Photons Using Superconducting Qubits
Alexey Ustinov (KIT)
Venue: Hybrid: Online and in Great lecture Hall
Nov 4
13:30
The non-abelian X-ray transform
Gabriel Paternain (University of Cambridge)
Venue: Hybrid: Online and in Great lecture Hall
Oct 28
...
STRUCTURES Bottom Up Gong Show

Summer Semester 2022

Jul 8
13:30
Online Special
Tobi Haas, James Farre, Agustin Moreno (QuIC, Université Libre de Bruxelles, Mathematisches Institut, Uni Heidelberg)
Venue: Online
Jul 1
13:30
Computational Psychiatry
Georgia Koppe / Pretalk Daniel Durstewitz (https://www.zi-mannheim.de/forschung/personen/person/7111.html)
Venue: Phil12;SR106
Jun 24
13:30
An introduction to expanders
Nalini Anantharaman (Uni Strasbourg, France)
Venue: Phil12;SR106
Jun 10
13:30
Predicting robust emergent function in active networks
Evelyn Tang (Rice University, Texas, USA)
Jun 3
13:30
Mathematical Methods for Single-cell Transcriptomics
Simon Anders (BioQuant, Uni Heidelberg)
Venue: Phil12 gHS & Online
May 13
13:30
Cracks in LCDM
Lavinia Heisenberg (ITP, Uni Heidelberg)
Venue: Phil12 gHS & Online
Apr 29
13:30
Interacting Particle Systems and stochastic PDEs
Hendrik Weber (University of Bath, Department of Mathematical Sciences Probability Laboratory at Bath)

Winter Semester 2021/22

Jan 28
13:00
From Nilpotence Varieties to Supermultiplets (and Back?)
Fabian Hahner (MI, Uni Heidelberg)
Venue: Online
Dec 3
13:00
Hamiltonian Estimations by Inverse Renormalisation Group and Convolution Nets
Stephane Mallat (Collège de France)
Venue: Zoom
Nov 26
13:00
Photonic non-von Neumann computing
Wolfram Pernice (Kirchhoff-Institute for Physics)
Venue: Hybrid (Zoom + gHs Phil12)
Nov 19
13:00
Function from structure in neuronal networks
Mihai Petrovici (Department of Physiology, Uni Bern)
Venue: Hybrid (Zoom + gHs Phil12)
Nov 5
13:00
Randomized iterative approaches - also useful in the continuous setting?
Felix Joos / Antonio Girao (IFI, Uni Heidelberg)
Venue: Hybrid (Zoom + gHs Phil12)

Summer Semester 2021

Jul 30
13:30
Quantum simulation with ultracold atoms – emergent Hilbert-space fragmentation
Monika Aidelsburger (LMU Munich & Munich Center for Quantum Science and Technology)
Venue: Zoom Meeting
Jul 16
13:30
Visualization of Time-Dependent Vector Field Topology
Lutz Hofmann (IWR, Uni Heidelberg)
Venue: Zoom Meeting
Jul 9
13:30
Multilevel Monte Carlo for Lattice Field Theory
Robert Scheichl/Eike Müller (IWR, Uni Heidelberg)
Venue: Zoom Meeting
Jul 2
13:30
What's inside the box? New methods for looking at cosmological data!
Björn Malte Schäfer (ZAH, Uni Heidelberg)
Venue: Zoom Meeting
Jun 25
13:30
Generative and Invertible Networks for LHC Theory
Tilman Plehn (ITP, Uni Heidelberg)
Venue: Zoom Meeting
Jun 18
14:30
Using bayesian networks to infer chromatin networks
Carl Herrmann (BioQuant, Uni Heidelberg)
Venue: Zoom Meeting
Jun 18
13:30
From machine learning to dynamic modeling for personalized medicine
Julio Saez-Rodriguez (Institute of Computational Biomedicine, Uni Heidelberg)
Venue: Zoom Meeting
Jun 11
17:00
Challenging Artificial Intelligence Vision Algorithms to achieve Human Level Performance
Alan Yuille (Johns Hopkins Krieger School of Arts and Sciences; Department for cognitive science;)
Venue: Zoom Meeting
May 28
13:30
Geometric Finite Elements
Oliver Sander (Institut für Numerische Mathematik, TU Dresden)
Venue: Zoom Meeting
May 21
13:30
Random Tensors, from quantum gravity to conformal field theory
Razvan Gurau (ITP, Uni Heidelberg)
Venue: Zoom Meeting
May 14
13:30
“Dynamics of many interacting quantum particles - what we can learn from experiments with ultracold atoms”
Maximilian Prüfer (KIP, Uni Heidelberg)
Venue: Zoom Meeting
May 7
13:30
EP 3.5
Knüpfer/Rüland (IAM, Uni Heidelberg)
Venue: Zoom Meeting
Apr 30
13:30
The Virtual Universe
Dylan Nelson (ZAH, Uni Heidelberg)
Venue: Zoom Meeting
Apr 23
13:30
Opinion Dynamics & Kinetic Field Theory
Carsten Littek (ITP, Uni Heidelberg)
Venue: Zoom Meeting
Apr 16
13:30
General Introduction
Long-Term-Members (STRUCTURES)
Venue: Zoom Meeting

Winter Semester 2020/21

Feb 26
13:30
Ultracold Fermions under the Microscope
Philipp Preiß (PI, Uni Heidelberg)
Venue: Zoom Meeting
Feb 19
13:30
Circuits and architectures for accelerated analog neuromorphic computing
Johannes Schemmel (KIP, Uni Heidelberg)
Venue: Zoom Meeting
Feb 12
13:30
Autonomous Driving and Law: First Results
Stefan J. Geibel (Institut für deutsches und europäisches Gesellschafts- und Wirtschaftsrecht, Uni Heidelberg)
Venue: Zoom Meeting
Feb 5
13:30
Bayesian inference in stellar astrophysics
Dr. Fabian Schneider (HITS, Heidelberg)
Venue: Zoom Meeting
Jan 29
13:30
EP: From the observable to the unobservable properties of galaxies, with neural networks
Dr. Annalisa Pillepich, Lukas Eisert (MPIA, Heidelberg)
Venue: Zoom Meeting
Jan 22
13:30
Statistics of Inverse Problems
Prof. Jan Johannes (MI, Uni Heidelberg)
Venue: Zoom Meeting
Jan 15
13:30
EP: Subriemannian Billiards
Dr. Lucas Dahinden (telefonisch zugesagt am 18.11. für den 15.01.) (MI, Uni Heidelberg)
Venue: Zoom Meeting
Dec 11
13:30
The Mathematics of Deep Learning: Can we Open the Black Box of Deep Neural Networks?
Prof. Dr. Gitta Kutyniok (Bavarian AI Chair for Mathematical Foundations of Artificial Intelligence, LMU Munich and Adjunct Professor for Machine Learning, University of Tromsø)
Venue: Zoom Meeting
Nov 27
13:30
Covid-19: Predicting the uncertain future
Prof. Dr. Cornelis Dullemond (ZAH, Uni Heidelberg)
Venue: Zoom Meeting
Nov 20
13:30
EP: Zero-sum evolutionary games and convex Hamiltonian systems
Prof. Dr. Gabriele Benedetti and Davide Legacci (MI, Uni Heidelberg)
Venue: Zoom Meeting
Nov 13
13:30
Cosmic Mysteries and the Hydrogen 21cm Line
Dr. Anastasia Fialkov (University of Cambridge, Institute of Astronomy)
Venue: Zoom Meeting
Nov 6
13:30
Correlations, chaos, and criticality in neural networks
Prof. Dr. Moritz Helias (Juelich Research Centre)
Venue: Zoom Meeting

Summer Semester 2020

Jul 24
13:30
Minkowski Functionals as Comprehensive Shape Descriptors in Physics
Michael A. Klatt (Princton University, USA)
Venue: Zoom Meeting
Jul 17
13:30
EP: Planetesimals, Dust Bunnies, and Hybridized Discontinuous GalerkinMethods
Prof. Guido Kanschat (IWR, Uni Heidelberg)
Venue: Zoom Meeting
Jul 3
13:30
Thermodynamics from relative entropy
PD Dr. Stefan Floerchinger (ITP, Uni Heidelberg)
Venue: Zoom Meeting
Jun 26
13:30
Statistical Physics of Active Matter
Prof. Julien Tailleur (Université Paris Diderot-CNRS)
Venue: Zoom Meeting
Jun 5
13:30
Neuromorphic encoding of quantum entanglement
Dr. Martin Gärttner (KIP, Uni Heidelberg)
Venue: Zoom Meeting
May 29
13:30
Searching for Extrasolar Planets with Gravitational Microlensing
Prof. Joachim Wambsganss (ARI, ZAH, Uni Heidelberg)
Venue: Zoom Meeting
May 15
13:30
Substructures in large objects
Prof. Felix Joos (Institut fuer Informatik, TCS Group, Uni Heidelberg)
Venue: Zoom Meeting
May 8
13:30
Rigidity and Flexibility in PDEs: Uncertainty, Antilocality and the Fractional Calder\'on Problem
Prof. Angkana Rueland (Institut fuer Angewandte Mathematik, Uni Heidelberg)
Venue: Zoom Meeting

Winter Semester 2019/20

Feb 7
11:30
EP: Bayesian Parameter Estimation for Mathematical Models of Self-Organization and Biological Pattern Formation
Marciniak/Scheichl (IWR, Uni Heidelberg)
Jan 31
13:30
EP: Universality on Network Structures from Quantum Dynamics to Big Data
Nicolò Defenu (ITP, Uni Heidelberg)
Jan 31
11:30
Measuring the symplectic size of subsets in phase space
Gabriele Benedetti (MI, Uni Heidelberg)
Jan 24
13:30
Using the HI 21 cm line to study the high-redshift Universe
Simon Glover (ITA, Uni Heidelberg)
Jan 24
11:30
Universe(s) in a box: towards numerical simulations of the Reionization
Annalisa Pillepich (MPIA, Uni Heidelberg)
Jan 17
14:30
EP: Can Geometric Hydrodynamics meet Dynamical Data Analysis?
Peter Albers/ Christoph Schnörr (MI / IAM, Uni Heidelberg)
Dec 13
11:30
The Future of Artificial Intelligence
Helmut Linde (Merck KGaA Darmstadt, PKW)
Venue: R106/GHS
Dec 6
11:30
Stability and instability of Many-Body Localization
Wojzeck de Roeck, Leuven (KU Leuven, Belgium)
Venue: R 106
Nov 15
13:30
Eigenvalue problems for nonlinear differential equations
Carl Bender (Washington University, St. Louis)
Venue: R 106
Nov 15
13:30
Laplacian roots, space sandwiches, spectral methods, and Ising clusters
Giaccomi Gori (ITP, Uni Heidelberg)
Venue: R 106
Nov 15
11:30
Geometry of bounded critical phenomena
Giaccomi Gori (ITP, Uni Heidelberg)
Venue: R 106
Nov 8
11:30
New emergent behavior in networks with higher-order interactions
Federico Battiston (Central European UniversityNador, Hungary)
Venue: R 106
Nov 8
11:30
Interplay between structure and function during brain development
Ana Millan (University de Granada)
Venue: R 106
Oct 31
14:15
Quantum Simulation of Hyperbolic Space with Circuit Quantum Electrodynamics: From Graphs to Geometry
Igor Boettcher (University of Maryland)
Oct 25
13:30
Kinetic field theory: more on the generating functional
Matthias Bartelmann (ITP, Uni Heidelberg)
Venue: GHS
Oct 25
11:30
Kinetic field theory for cosmic structure formation
Matthias Bartelmann (ITP, Uni Heidelberg)
Venue: GHS

Summer Semester 2019

Jul 19
13:15
Universality and phase transitions in dissipative quantum many-body syst
Jamir Marino (Mainz/Harvard)
Jul 12
13:00
Analyzing measured and simulated geometry based data
Susanne Krömker (IWR, Uni Heidelberg)
Jul 12
12:00
Visualization in Dynamical Systems
Filip Sadlo (IWR, Uni Heidelberg)
Jul 12
11:30
Radiation Magnetohydrodynamics in Astrophysics
Ralf Klessen (ZAH, Uni Heidelberg)
Jul 12
11:00
Speakers introduce STRUCTURES
YRC
Venue: GHS
Jul 5
13:00
Moduli spaces, their geometry and analysis
Jan Swoboda (MI, Uni Heidelberg)
Jul 5
11:00
Do quantum and classical heat machines have a different performance?
David Gelbwaser (Harvard University)
Venue: GHS
Jun 28
13:00
Cell mechanics as a heterogeneous materials problem / Efficient finite element solvers for heterogeneous materials
Ulrich Schwarz / Linus Seelinger (ITP / IWR, Uni Heidelberg)
Jun 28
11:00
Quantum dynamics in the lab / Some Mathematical Questions in Quantum Dynamics
Markus Oberthaler / Manfred Salmhofer (KIP / ITP, Uni Heidelberg)
Venue: GHS
Jun 14
13:15
Internal discussion: open access and SciPost
Jun 14
11:30
Quench, Hydro and Floquet Dynamics in Integrable Systems
Jean-Sebastien Caux (Amsterdam)
Venue: R106
Jun 7
12:00
EP Dynamics: Inferring Dynamical Systems from Time Series Observations using Recurrent Neural Networks
Daniel Durstewitz (ZI Mannheim)
Venue: R106
May 24
13:00
Computers like Brains - Models for information processiong
Andreas Baumbach (KIP (Uni Heidelberg))
Venue: R106
May 17
13:30
Representing Structure in Data using Assignment Flows
Christoph Schnörr (UAM, IPA)
Venue: R106
May 17
12:00
Applied string theory: Understanding strange metals in the lab with virtual black holes
Koenraad Schalm (Universiteit Leiden, Netherlands)
Venue: R106
May 10
13:00
Vision Emerging
Ralf Wessel (Washington University, Saint Louis, USA)
Venue: R106
Apr 26
13:00
Entanglement in quantum dynamics and quantum technologies
Philipp Hauke (KIP/ITP, Uni Heidelberg)
Venue: R106

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