Wei-Dong Li

Nonlinear Dissipation and Hopf Criticality in Driven Dissipative Collective Spins

Self-sustained oscillations combine finite-amplitude stabilization with a neutral phase degree of freedom. We develop this bifurcation-based framework for driven-dissipative collective spins and show that the microscopic structure of the U(1)-covariant dissipation selects the background attractor, while the explicit U(...