Current Research Projects
Reservoir Computing with Active Matter Systems
Reservoir Computing is a cutting-edge approach for predicting chaotic time series, a challenge with applications across science and technology. Instead of relying solely on abstract algorithms, it leverages dynamical systems that transform input data into rich, high-dimensional states. These systems can even be physical.
In our research, we explore active matter - driven, non-equilibrium model systems often resembling "swarms" - as reservoirs. Such systems naturally display emergent behaviors like flocking and produce intricate spatio-temporal patterns. By simulating these dynamics, we investigate how the underlying physics influences predictive performance within the machine learning framework.
Our goal is to harness the complexity of active matter to inspire unconventional, energy-efficient, and neuromorphic computing methods, paving the way for novel in-materio and edge computing devices.
Researcher: Mario Gaimann
Studying Dynamical Systems for Intelligible Modeling and Unconventional Computing
We investigate computation through the lens of dynamical systems, unifying physical processes and machine learning. By treating both hardware and algorithms as evolving dynamical systems, we leverage natural physical dynamics - such as relaxation to stable states and phase transitions - as a foundation for robust, efficient computation.
Our work shows that concepts from physics - like order parameters and criticality in the Ising model - directly shape learned representations in self-supervised auto-encoders, revealing deep connections between physical phase transitions and optimization dynamics in neural networks.
By framing computation as constrained dynamical evolution, we enable abstraction across scales: algorithms emerge predictably from physical behavior, decoupled from hardware specifics. This approach, grounded in dynamical systems theory, paves the way for general-purpose physical computers that are energy-efficient, scalable, and inherently adaptive.
Researcher: Max Weinmann
Coarse-Graining of Non-Equilibrium Many-Body Dynamics
Physical systems far from equilibrium-ranging from turbulent fluids and active matter to driven materials-often display complex collective behavior that cannot be captured by tracking every microscopic detail. Our research focuses on building effective coarse-grained models that reveal the essential physics of such non-equilibrium many-body systems and we develop new methods to describe their dynamics using machine learning. By combining theoretical approaches from statistical mechanics with modern data-driven methods, we aim to bridge fundamental physics with practical modeling tools.
We seek to advance the physics of coarse-graining non-equilibrium dynamics, providing insights into how information is stored, processed, and transmitted in complex physical systems. At the same time, the methods developed here contribute to the broader interdisciplinary effort of integrating physics-based understanding with machine learning, opening new opportunities for both fundamental science and applied research.
Researcher: Patrick Egenlauf
From physical reservoir computers to physics- and cognitive-based AI
Physical Reservoir Computing has demonstrated that physical systems can represent and process the information from their external environment within their dynamics, enabling them to compute a wide variety of tasks, sometimes with little or no retraining.
By leveraging model physical substrates, particularly many-body systems in the form of active matter, we aim to develop a new class of physics-based learning models that exhibit a high degree of multi-functionality. Exploiting the correlative and collective dynamics, we investigate how these systems embody the environment by coherently embedding dynamical signals into their state space. The emergent abilities can be leveraged to automatically detect the context of the external environment and adaptively switch the computational mode.
Ultimately, our research seeks to lay the foundation for self-learning and cognitive-like architectures rooted in physical mechanisms of complex interacting systems. Therefore, intelligence and task-adaptation can be interpreted through basic principles, closing the gaps between human understanding, artificial intelligence, and physical computation.
Researcher: Koh Uehara