https://doi.org/10.1140/epjb/s10051-023-00626-8
Regular Article - Statistical and Nonlinear Physics
Non-linear dynamics and emergent statistical regularity in classical Lennard–Jones three-body system upon disturbance
School of Physics and Astronomy, and Institute of Natural Sciences, Shanghai Jiao Tong University, 200240, Shanghai, China
Received:
20
June
2023
Accepted:
20
November
2023
Published online:
8
December
2023
Understanding the deep connection of microscopic dynamics and statistical regularity yields insights into the foundation of statistical mechanics. In this work, based on the classical three-body system under the Lennard–Jones potential upon disturbance, we illustrated the elusive non-linear dynamics in terms of the neat frequency-mixing processes, and revealed the emergent statistical regularity in speed distribution along a single particle trajectory. This work demonstrates the promising possibility of classical few-body models for exploring the fundamental questions on the interface of microscopic dynamics and statistical physics.
Supplementary Information The online version contains supplementary material available at https://doi.org/10.1140/epjb/s10051-023-00626-8.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.