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Statistical mechanics and dynamics of solvable models with long-range interactions
A. Campa, T. Dauxois, S. Ruffo
The two-body potential of systems with long-range interactions decays at large distances as , with , where is the space dimension. Examples are: gravit…
Peaked structures in noise power spectra as signature of avalanche correlation
E. Celasco, M. Celasco, R. Eggenhoeffner
An outstanding topic on noise phenomena is the occurrence of peaked structures in many natural systems in a wide range 10^-1 - 10^6 Hz. All existing theories failed to explain this…
Non equilibrium inertial dynamics of colloidal systems
Marini Bettolo Marconi Umberto, Tarazona Pedro
We consider the properties of a one dimensional fluid of brownian inertial hard-core particles, whose microscopic dynamics is partially damped by a heat-bath. Direct interactions a…
Phase transitions as topology changes in configuration space: an exact result
Lapo Casetti, E. G. D. Cohen, Marco Pettini
The phase transition in the mean-field XY model is shown analytically to be related to a topological change in its configuration space. Such a topology change is completely describ…
The Thermodynamics of Social Processes: The Teen Birth Phenomenon
Nicola Scafetta, Patti Hamilton, Paolo Grigolini
We argue that a process of social interest is a balance of order and randomness, thereby producing a departure from a stationary diffusion process. The strength of this effect vani…
Internal avalanches in models of granular media
S. Krishnamurthy, H. J. Herrmann, V. Loreto +2
We study the phenomenon of internal avalanching within the context of recently introduced lattice models of granular media. The avalanche is produced by pulling out a grain at the…