title: Scale-free networks from a Hamiltonian dynamics.
abstract: Contrary to many recent models of growing networks, we present a model with fixed number of nodes and links, where a dynamics favoring the formation of links between nodes with degree of connectivity as different as possible is introduced. By applying a local rewiring move, the network reaches equilibrium states assuming broad degree distributions, which have a power-law form in an intermediate range of the parameters used. Interestingly, in the same range we find nontrivial hierarchical clustering.
authors.affiliation: INFM, Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Baiesi
authors.forename: S S
authors.initials: SS
authors.lastname: Manna