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Contribution of individual degrees of freedom to Lyapunov vectors in many-body systems

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 نشر من قبل Yves Elskens
 تاريخ النشر 2019
  مجال البحث فيزياء
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We use the weight $delta$I, deduced from the estimation of Lyapunov vectors, in order to characterise regions in the kinetic (x, v) space with particles that most contribute to chaoticity. For the paradigmatic model, the cosine Hamiltonian mean field model, we show that this diagnostic highlights the vicinity of the separatrix, even when the latter hardly exists.



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