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Topologically-enforced bifurcations in superconducting circuits

Exploring the relationship of topological insulators and superconductors and the field of nonlinear dynamics.

To address this subject, we adopt the linear coupling geometry of the Su-Schrieffer-Heeger model, a paradigmatic example for a topological insulator, and render it nonlinearly in the context of superconducting circuits. As a consequence, the system exhibits topologically enforced bifurcations as a function of the topological control parameter, which finally gives rise to chaotic dynamics, separating phases that exhibit clear topological features.

Preprint on ArXiv

Published in Physical Review Letters