Articulo
Nonlinear dynamics of a semiquantum Hamiltonian in the vicinity of quantum unstable regimes
Autor
Kowalski, Andrés Mauricio
Rossignoli, Raúl
Institución
Resumen
We examine the emergence of chaos in a non-linear model derived from a semiquantum Hamiltonian describing the coupling between a classical field and a quantum system. The latter corresponds to a bosonic version of a BCS-like Hamiltonian, and possesses stable and unstable regimes. The dynamics of the whole system is shown to be strongly influenced by the quantum subsystem. In particular, chaos is seen to arise in the vicinity of a quantum critical case, which separates the stable and unstable regimes of the bosonic system. Facultad de Ciencias Exactas Instituto de Física La Plata (IFLP)