Spontaneous symmetry breaking and superposition of states in systems with dynamic chaos

Authors

DOI:

https://doi.org/10.33910/2687-153X-2021-2-3-122-131

Keywords:

nonlinear dynamics, strange attractor, probability density, chaos, perturbation theory, superposition principle

Abstract

The article discusses one of the typical problems described by the equations of nonlinear dynamics—forced oscillations in a system with W-potential. It focuses, in particular, on chaotic oscillations in the presence of dissipation. In this case the state of the system is described by a chaotic (strange) attractor and can be characterized by the probability density in the phase space. A partial differential equation for the probability density is presented. It is shown that when the parameters change in the system under consideration, symmetry breaking can occur. In this case the superposition principle for the probability density is valid. It is similar to the superposition principle for the quantum mechanical function in the problem of particle motion in the W-potential field.

References

Bunker, P. R. (1979) Molecular symmetry and spectroscopy. New York: Academic Press, 440 p. (In English)

Feynman, R. P., Leighton, R. B., Sands, M. (2006) The Feynman lectures on physics including Feynman’s tips on physics: The definitive and extended edition. Vol. 2. 2nd ed. Boston: Addison-Wesley Publ., 512 p. (In English)

Landau, L. D., Lifshitz, E. M. (1977) Quantum mechanics: Non-relativistic theory. Vol. 3. 3rd ed., rev. Oxford et al.: Pergamon Press, 688 p. (In English)

Liaptsev, A. V. (2013) Simmetriya regulyarnykh i khaoticheskikh dvizhenij v zadachakh nelinejnoj dinamiki. Uravnenie Duffinga [The symmetry of regular and chaotic motions in nonlinear dynamic problems. Duffing equation]. Izvestia Rossijskogo gosudarstvennogo pedagogicheskogo universiteta im. A. I. Gertsena — Izvestia: Herzen University Journal of Humanities & Sciences, 157, 24–34. (In Russian)

Liapzev, A. V. (2019) The calculation of the probability density in phase space of a chaotic system on the example of rotator in the harmonic field. Computer Assisted Mathematics, 1, 55–65. (In English)

Liapzev, A. V. (2020) Linear properties of chaotic states of systems described by equations of nonlinear dynamics. Analogy with quantum theory. Physics of Complex Systems, 1 (4), 150–157. https://doi.org/10.33910/2687-153X-2020-1-4-150-157 (In English)

Schuster, G. H. (1986) Deterministic chaos. An introduction. Weinheim: Physik-Verlag, 220 p. (In English)

Published

07.09.2021

Issue

Section

Theoretical Physics