Weak chaos in large conservative system-Infinite-range coupled standard maps

LUIS G. MOYANO; ANA P. MAJTEY; CONSTANTINO TSALLIS

Santos

Encuentro; XXVIII Encontro Nacional de Física Da Matéria Condensada; 2005

We study, through a new perspective, a globally coupled map system that essentially interpolates between simple discrete-time nonlinear dynamics and certain long-range many-body Hamiltonian models. In particular, we exhibit relevant similarities, namely (i) the existence of long-standing quasistationary states (QSS), and (ii) the emergence of weak chaos in the thermodynamic limit, between the present model and the Hamiltonian Mean Field model, a strong candidate for a nonxtensive statistical mechanical approach.