Information exchanges in quantum arrays due to spatial diversity

The effects of parameter spatial disorder are investigated in quantum arrays focusing on collective behaviors and communication between connected units. The amount of information exchanged has been correlated to the global dynamics and the parameters of the complex systems. A two-cell Quantum Cellular Neural Networks (QCNNs) oscillator is chosen as fundamental unit; chaotic dynamics characterizes the oscillators coupled through Coulomb interaction. Depending on the diffusion coefficient, two opposite behaviors have been recognized: strong communication between the cells and break of the information exchanges among the systems. Spatial parametric dissymmetry, random and chaotic, has been introduced increasing the number of communicating cells. The application of the deterministic disorder gives better results than the random one. Spatial stochastic resonance effects are recognizable in the chaotic approach.