Mini-Workshop on Multifractality at Criticality

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Mini-Workshop_Header_Image
Aims

Multifractality provides a fundamental framework for describing complex scale-invariant phenomena in systems at criticality. Since its emergence in the study of turbulence and disordered systems in the 1980s, multifractality has become a unifying concept across diverse fields of physics, from localization and quantum phase transitions to classical critical phenomena, transport in complex media, and far-from-equilibrium systems.

This mini-workshop brings together leading experts to advance our understanding of multifractality at criticality, with a focus on theoretical foundations, numerical approaches, and experimental realizations.
A central motivation is to identify universal features and signatures of criticality encoded in multifractal spectra and to address current challenges in interpreting and predicting these signatures in complex quantum and classical systems.

Invited Participants
Martin Zirnbauer
University of Cologne

Random matrix theory and symmetry classes; field-theoretic approaches to disordered and critical systems
Keith Slevin
Osaka University

Anderson localization and quantum Hall systems; multifractal analysis and numerical methods.
Hideaki Obuse
Hokkaido University

Quantum transport and topological phases; numerical studies of critical systems in low dimensions
Wei-Han Li
MPI-PKS, Dresden

Multifractality in interacting and disordered systems; numerical simulations and scaling theory.
Sen Mu
MPI-PKS, Dresden

Critical phenomena, localization, and multifractal analysis in quantum many-body systems.
Joachim Peinke
University of Oldenburg

Turbulence and complex systems; multifractal analysis of classical fields and flows.
Program
 TitleSpeakerAffiliationLocation
8/17 (Mon)
12:00Lunch - Coffee  College 3
15:30Extreme-Value Criticality and Gain Decomposition at the Integer Quantum Hall TransitionWei-Han LiMPI-PKS DresdenSeminar Room Research III
16:30Open Discussion  Seminar Room Research III, Offices 87, 91, 95, 96
18:00Dinner  Off Campus
8/18 (Tue)
12:00Lunch  College 3
13:00Finite Size Scaling of the Quantum Hall TransitionKeith SlevinOsaka UniversitySeminar Room Research III
14:00Multifractality at the localization-delocalization transition in 1D non-Hermitian systemsObuse HideakiHokkaido UniversitySeminar Room Research III
15:00   Seminar Room Research III, Offices 87, 91, 95, 96
18:00Dinner  Off Campus
8/19 (Wed)
12:00Lunch  College 3
13:00Multifractality in Turbulence: New ConceptsJoachim PeinkeOldenburg UniversitySeminar Room Research III
14:00Open Discussion  Seminar Room Research III, Offices 87, 91, 95, 96
18:00Dinner  Off Campus
8/20 (Thu)
12:00Lunch  College 3
13:00Wess-Zumino-Witten anomaly of the Chalker-Coddington modelMartin ZirnbauerCologne UniversitySeminar Room Research III
14:00Open Discussion  Seminar Room Research III, Offices 87, 91, 95, 96
15:00Spatial and temporal correlations in 2D Anderson localizationSen MuMPI-PKS DresdenSeminar Room Research III
16:00Open Discussion  Seminar Room Research III, Offices 87, 91, 95, 96
18:00Dinner  Off Campus
8/21 (Fri)
12:00Lunch  College 3
13:00Open Discussion – Farewell   
Organizers:
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Saberi Abbas
Prof. Dr. Abbas Ali Saberi
Associate Professor of Theoretical Physics
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Prof. Stefan Kettemann
Associate Professor of Complex Systems
Partners
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Constructor University Logo
Event details and reservation
17 - 21 August 2026 (Monday - Friday)

Participation by invitation only
Date
Location
Constructor University Bremen, Germany