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Multiphoton excitation of molecules and the quasienergy spectrum of the anharmonic oscillator
Authors:S N Gordienko  A V Dem'yanenko
Institution:(1) L. D. Landau Institute of Theoretical Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russia;(2) Institute of Spectroscopy, Russian Academy of Sciences, 142092 Troitsk, Moscow Region, Russia
Abstract:The quasienergy levels of an anharmonic oscillator in a strong external alternating field form two families, transitions between which are forbidden because of the large value of the quasiclassicality parameter of the forced oscillations caused by the external field. This makes it possible to explain the results of a number of experiments on the multiphoton excitation of molecules by infrared radiation. Pis'ma Zh. éksp. Teor. Fiz. 64, No. 1, 13–18 (10 July 1996)
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