Abstract
A vibrational analog of the superradiant quantum transition (SQT) in a classical system of weakly bound oscillators of van der Pole-Duffing (self-generators), in which the coupling element is a linear oscillator, is described. Such an analog is a strongly modulated oscillatory process of almost complete periodic energy exchange between the generators. This type of mode is alternative to nonlinear normal modes (NNM) and close in its character to limiting phase trajectories (LPTs), which have been introduced recently as applied to conservative systems, but in contrast to them, as the attractor. It is shown that the necessary condition of the transition to intense energy exchange in the classical system is the instability of one of the NNMs similarly to that when the condition of the superradiant transition is the instability of the ground state in a quantum model.
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Original Russian Text © L.I. Manevitch, M.A. Kovaleva, 2013, published in Doklady Akademii Nauk, 2013, Vol. 452, No. 5, pp. 514–517.
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Manevitch, L.I., Kovaleva, M.A. Vibration analog of a superradiant quantum transition. Dokl. Phys. 58, 428–432 (2013). https://doi.org/10.1134/S1028335813100078
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DOI: https://doi.org/10.1134/S1028335813100078