4 years ago

Slow dynamics and ergodicity in the one-dimensional self-gravitating system. (arXiv:2007.11635v1 [cond-mat.stat-mech])

L. F. Souza, T. M. Rocha Filho
We revisit the dynamics of the one-dimensional self-gravitating sheets models. We show that homogeneous and non-homogeneous states have different ergodic properties. The former is non-ergodic and the one-particle distribution function has a zero collision term if a proper limit is taken for the periodic boundary conditions. Non-homogeneous states are ergodic in a time window of the order of the relaxation time to equilibrium, as similarly observe in other systems with a long range interaction. For the sheets model this relaxation time is much larger than other systems with long range interactions if compared to the initial violent relaxation time.

Publisher URL: http://arxiv.org/abs/2007.11635

DOI: arXiv:2007.11635v1

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