Max Planck Institute for the Physics of Complex Systems

Learning to stabilize nonequilibrium phases of matter with active feedback using partial information

Abstract Recent advances in quantum computing experiments have enabled new pathways for feedback control. Here, we investigate the role of information in interactive quantum many-body dynamics to engineer out-of-equilibrium phases of matter. To this end, we train reinforcement le...

A topological approach to the Cahn–Hilliard equation and hyperuniform fields

Hyperuniform structures are disordered, correlated systems in which density fluctuations are suppressed at large scales. Such a property generalizes the concept of order in patterns and is relevant across diverse physical systems. We present a numerical characterization of hyperu...

Photocatalytic performance of the two-dimensional material ZnGeSeO for the hydrogen evolution reaction: A first-principles study

The photocatalytic production of green hydrogen (H 2 ) through water splitting offers a sustainable pathway to convert solar renewable energy into storable chemical fuel while reducing environmental pollution. In this study, first-principles density functional theory calculations...

Extreme vulnerability to intruder attacks destabilizes network dynamics

Abstract Consensus, synchronization, formation control, and power grid balance are examples of desirable dynamical states that arise in networks. Here we investigate how such states can be destabilized by an intruder agent within an otherwise functioning network. We see that a si...