Validity of the rotating wave approximation for high-order molecular multiphoton processes

Israel Schek; Martin L. Sage; Joshua Jortner

doi:10.1016/0009-2614(79)87006-2

Validity of the rotating wave approximation for high-order molecular multiphoton processes

Israel Schek^*, Martin L. Sage, Joshua Jortner

^*Corresponding author for this work

School of Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

We examine the sufficient conditions for the applicability of the rotating wave approximation (RWA) for high-order multiphoton excitation (HOME) of a sparse many-level molecular level structure, and demonstrate the breakdown of the RWA for HOME of the entire bound spectrum of a Morse oscillator. We propose that the Magnus expansion for the time-evolution operator provides a useful, practical and powerful method to surpass the RWA.

Original language	English
Pages (from-to)	230-235
Number of pages	6
Journal	Chemical Physics Letters
Volume	63
Issue number	2
DOIs	https://doi.org/10.1016/0009-2614(79)87006-2
State	Published - 15 May 1979

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abstract = "We examine the sufficient conditions for the applicability of the rotating wave approximation (RWA) for high-order multiphoton excitation (HOME) of a sparse many-level molecular level structure, and demonstrate the breakdown of the RWA for HOME of the entire bound spectrum of a Morse oscillator. We propose that the Magnus expansion for the time-evolution operator provides a useful, practical and powerful method to surpass the RWA.",

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Validity of the rotating wave approximation for high-order molecular multiphoton processes

Abstract

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