Mainz 2026 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 28: Poster – Quantum Optics
Q 28.35: Poster
Dienstag, 3. März 2026, 17:00–19:00, Philo 2. OG
Self-organized transport in noisy dynamic network — Frederic Folz1, •Joshua Rainer Ganz1, Sayan Roy1, Adish Singha2, Kurt Mehlhorn2, and Giovanna Morigi1 — 1Theoretische Physik, Universität des Saarlandes, 66123 Saarbrücken, Germany — 2Max-Planck-Institut für Informatik, Saarland Informatics Campus, 66123 Saarbrücken, Germany
We present a numerical study of multicommodity transport in a noisy, nonlinear network. The nonlinearity determines the dynamics of the edge capacities, which can be amplified or suppressed depending on the local current flowing across an edge. We consider network self-organization for different activation functions and types of noise.
We identify parameter regimes where noise leads to self-organization into more robust topologies, that are not found by the sole noiseless dynamics. Moreover, the interplay between noise and specific functional behavior of the nonlinearity gives rise to different features, such as (i) continuous or discontinuous responses to the demand strength and (ii) either single or multistable solutions. Our study shows the crucial role of the activation function on noise-assisted phenomena.
Keywords: nonlinear dynamics; stochastic resonance; self-organization; noisy dynamics; transport network