The effect of increasing connectance (i.e. number of interacting neighbouring masses) on the equipartition threshold of a Fermi-Pasta-Ulam (FPU) model with 32 mass points is considered. Increasing the number of interacting neighbour mass points from 2 to 3, 4 and 5 and keeping constant the effective strength of the nonlinear terms no sensible effect on the critical energy for equipartition is observed.
Connectance and equipartition thresholds in hamiltonian systems / Giansanti, Andrea; Pettini, M.; A., Vulpiani. - In: PHYSICS LETTERS A. - ISSN 0375-9601. - STAMPA. - 109:(1985), pp. 451-453. [10.1016/0375-9601(85)90541-9]
Connectance and equipartition thresholds in hamiltonian systems
GIANSANTI, Andrea;M. Pettini;
1985
Abstract
The effect of increasing connectance (i.e. number of interacting neighbouring masses) on the equipartition threshold of a Fermi-Pasta-Ulam (FPU) model with 32 mass points is considered. Increasing the number of interacting neighbour mass points from 2 to 3, 4 and 5 and keeping constant the effective strength of the nonlinear terms no sensible effect on the critical energy for equipartition is observed.File allegati a questo prodotto
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