Abstract
An excited anharmonic oscillator is considered under conditions of adiabatic (i.e., slow, as compared to the oscillation period) loading with an external force tending to a constant value at long times. The energy characteristics of the adiabatically loaded anharmonic oscillator, such as the instantaneous energy of the oscillator, the maximum kinetic (oscillation) energy, and the kinetic and potential energies averaged over the period, are analytically calculated as a function of the steady-state force. The analytical results are confirmed by the data of numerical calculations. It is established that the external force gives rise to a redistribution of the average kinetic and potential components of the initial energy of the anharmonic oscillator and that the transferred energy portions at a small external force considerably exceed the average work done by the external force.
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Original Russian Text © A.I. Slutsker, V.L. Gilyarov, A.S. Luk’yanenko, 2006, published in Fizika Tverdogo Tela, 2006, Vol. 48, No. 10, pp. 1832–1837.
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Slutsker, A.I., Gilyarov, V.L. & Luk’yanenko, A.S. Energy features of an adiabatically loaded anharmonic oscillator. Phys. Solid State 48, 1947–1953 (2006). https://doi.org/10.1134/S1063783406100222
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DOI: https://doi.org/10.1134/S1063783406100222