Chaos in a double driven dissipative nonlinear oscillator - art. no. 046219

We propose an anharmonic oscillator driven by two periodic forces of differ ent frequencies as a time-dependent model for investigating quantum dissipa tive chaos. Our analysis is done in the framework of the statistical ensemb le of quantum trajectories in a quantum state diffusion approach. The quant um dynamical manifestations of chaotic behavior, including the emergence of chaos, properties of strange attractors, and quantum entanglement, are stu died by numerical simulation of the ensemble averaged Wigner function and v on Neumann entropy.