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Relaxation time and randomness in phase space

Время релаксации и случайность в фазовом пространстве

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Il Nuovo Cimento B (1971-1996)

Summary

The stochastic region in the phase space of a classical nonlinear system, a Lennard-Jones chain, is proven to be nonuniform with respect to a random access, through the sensitivity of the relaxation time to initial conditions. The dependence on various parameters is analysed and the results are interpreted geometrically as the effect of residual invariant tori in the stochastic domain.

Riassunto

Si dimostra, mediante la sensibilità del tempo di rilassamento alle condizioni iniziali, che la regione stocastica nello spazio delle fasi di un sistema classico non lineare (una catena di Lennard-Jones) non è uniforme rispetto a un accesso casuale. Si analizza la dipendenza dai vari parametri e i risultati sono interpretati geometricamente come effetto dei tori invarianti superstiti nella zona stocastica.

Резюме

Используя чувствительность времени релаксации к начальным условиям, доказывается, что стохастическая область в фазовом пространстве классической нелинейной системы цепочки Леннарда-Джонса, не является однородной относительно случайного подхода. Анализируется зависимость различных параметров. Полученные результаты интерпретируются геометрически как эффект остаточных инвариантных торов в стохастической области.

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References

  1. For general information, seeJ. Moser:Stable and Random Motions in Dynamical Systems (Princeton, 1973);R. Helleman:Self-generated chaotic behaviour in nonlinear mechanics, inFundamental Problems in Statistical Mechanics, Vol.5, edited byE. G. D. Cohen (Amsterdam, 1980);Dynamical Systems and Chaos, Proceedings Sitges 1982, edited byL. Garrido (Berlin, 1983).

  2. M. Casartelli:Phys. Rev. A,19, 1741 (1979).

    Article  ADS  Google Scholar 

  3. M. Casartelli, E. Diana, L. Galgani andA. Scotti:Phys. Rev. A,13, 1921 (1976);G. Casati:Theor. Math. Phys.,29, 1022 (1977).

    Article  ADS  Google Scholar 

  4. P. Bocchieri, A. Scotti, B. Bearzi andA. Loinger:Phys. Rev. A,2, 2013 (1970).

    Article  ADS  Google Scholar 

  5. M. Casartelli:Lett. Nuovo Cimento,33, 293 (1982).

    Article  MathSciNet  Google Scholar 

  6. L. Galgani:Lett. Nuovo Cimento,31, 65 (1981).

    Article  MathSciNet  Google Scholar 

  7. G. Benettin andL. Galgani:J. Status Phys.,27, 153 (1982).

    Article  ADS  Google Scholar 

  8. I. Guarneri andG. Toscani:Lett. Nuovo Cimento,14, 101 (1975).

    Article  Google Scholar 

  9. F. Fucito, F. Marchesoni, E. Marinari, G. Parisi, L. Peliti, S. Ruffo andA. Vulpiani:J. Phys.,43, 707 (1982).

    Article  Google Scholar 

  10. M. C. Carotta, C. Ferrario, L. Galgani andG. Lo Vecchio:Phys. Rev. A,17, 786 (1978).

    Article  ADS  Google Scholar 

  11. G. Casati, G. Comparin andI. Guarneri:Phys. Rev. A,26, 717 (1982).

    Article  ADS  Google Scholar 

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Casartelli, M. Relaxation time and randomness in phase space. Nuovo Cim B 76, 97–108 (1983). https://doi.org/10.1007/BF02721546

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  • DOI: https://doi.org/10.1007/BF02721546

PACS. 03.20

PACS. 05.70

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