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arXiv · 0711.1726

Anomalous diffusion and quasistationarity in the HMF model

A. Pluchino·A. Rapisarda
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Abstract

We explore the quasistationary regime of the Hamiltonian Mean Field Model (HMF) showing that at least three different classes of events exist, with a different diffusive behavior and with a relative frequency which depends on the size of the system. Along the same line of a recent work \cite{epl}, these results indicate that one must be very careful in exchanging time averages with ensemble averages during the non-ergodic metastable regime and at the same time they emphasize the role of finite size effects in the evaluation of the diffusive properties of the system.

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BibTeXRIS

A. Pluchino, A. Rapisarda. 2007-11-12. Anomalous diffusion and quasistationarity in the HMF model. https://doi.org/10.1063/1.2828724

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