Nonlinear dynamics of a Dicke model for V-type atoms
Phys. Rev. A 113, 023723 – Published 26 February, 2026
DOI: https://doi.org/10.1103/vt1x-bpz4
Abstract
We study the nonlinear, semiclassical (mean-field) dynamics of an open spin-1 (three-level) variant of the traditional Dicke model. In particular, we focus on V-type energy-level configurations with varying degrees of energy-level asymmetry. We also allow for unbalanced coupling, where corotating and counterrotating Hamiltonian terms are independently tunable. We characterize the system with a dynamical systems approach, where different behaviors map to definite dynamical objects, and phase transitions to bifurcations. We find the emergence of both periodic and two-frequency oscillations, as well as multistability and chaotic dynamics.
