تقرير
Cauchy distributions for the integrable standard map
| العنوان: | Cauchy distributions for the integrable standard map |
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| المؤلفون: | Bountis, Anastasios, Veerman, J. J. P., Vivaldi, Franco |
| سنة النشر: | 2020 |
| المجموعة: | Mathematics Mathematical Physics |
| مصطلحات موضوعية: | Mathematics - Dynamical Systems, Mathematical Physics, Mathematics - Number Theory, 37A05, 37A44, 37A50 |
| الوصف: | We consider the integrable (zero perturbation) two--dimensional standard map, in light of current developments on ergodic sums of irrational rotations, and recent numerical evidence that it might possess non-trivial q-Gaussian statistics. Using both classical and recent results, we show that the phase average of the sum of centered positions of an orbit, for long times and after normalization, obeys the Cauchy distribution (a q-Gaussian with q=2), while for almost all individual orbits such a sum does not obey any distribution at all. We discuss the question of existence of distributions for KAM tori. Comment: 6 pages, 2 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.physleta.2020.126659 |
| URL الوصول: | http://arxiv.org/abs/2004.12912 |
| رقم الأكسشن: | edsarx.2004.12912 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.physleta.2020.126659 |
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