#nonlinear dynamics
8 resultsPerturbations against a Q-ball. II. Contribution of nonoscillation modes
Mikhail N. Smolyakov
The paper analyzes small disturbances around Q‑ball solitons, demonstrating that non‑oscillatory perturbation modes must be treated with nonlinear equations of motion and that the…
Electromechanics in vertically coupled nanomembranes
Sepideh Naserbakht, Andreas Naesby, Aurélien Dantan
The paper demonstrates how piezoelectric compression can tune the tensile stress of vertically coupled silicon nitride membranes, enabling controllable mechanical mode spectra, str…
Dissipative Magnetic Polariton Soliton
Chunyu Jia, Rukuan Wu, Ying Hu +2
The paper predicts and analytically describes a stable, non‑decaying magnetic polariton soliton in a spinor polariton Bose‑Einstein condensate driven by uniform nonresonant pumping…
Critical phenomena and nonlinear dynamics in a spin ensemble strongly coupled to a cavity. I. Semiclassical approach
Dmitry O. Krimer, Matthias Zens, Stefan Rotter
The paper theoretically investigates the nonlinear dynamics and steady‑state behavior of a large, inhomogeneously broadened spin ensemble strongly coupled to a driven single‑mode c…
Data-driven identification of dissipative linear models for nonlinear systems
S. Sivaranjani, Etika Agarwal, Vijay Gupta
The paper proposes a method to derive a dissipative linear approximation of an unknown nonlinear system from input‑output data by first identifying a linear model and then adjustin…
Learning Stabilizable Nonlinear Dynamics with Contraction-Based Regularization
Sumeet Singh, Spencer M. Richards, Vikas Sindhwani +2
The paper introduces a control‑theoretic regularizer based on contraction theory to learn nonlinear dynamical models that are guaranteed to be stabilizable, and demonstrates improv…
Towards Distributed Stability Analytics of Dynamic Power Systems: A Phasor-Circuit Theory Perspective
Peng Yang, Feng Liu, Zhaojian Wang +1
The paper extends circuit-theoretic concepts to phasor-based power system models, providing distributed stability conditions for systems with many heterogeneous renewable and distr…
Piecewise Robust Barrier Tubes for Nonlinear Hybrid Systems with Uncertainty
Hui Kong, Ezio Bartocci, Yu Jiang +1
The paper extends Piecewise Barrier Tubes to efficiently compute sound flowpipe overapproximations for nonlinear hybrid systems that include parameter and noise uncertainty.