Intensity fluctuations in quantal spectra as a measure of diffusion in phase space

J. G. Leopold; R. D. Levine; D. Richards

doi:10.1209/0295-5075/6/4/002

Intensity fluctuations in quantal spectra as a measure of diffusion in phase space

J. G. Leopold, R. D. Levine, D. Richards

Institute of Chemistry

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Abstract

Quantal and classical spectra are computed for a model 1-D hydrogen atom in an oscillating electrical field. Using a Fokker-Planck equation, the results are discussed in terms of restricted diffusion in action space due to the presence of broken-down KAM tori («Cantori»). The fluctuations diminish during the onset of chaos and settle down to the expected Thomas-Porter behaviour only upon the final disappearance of Cantori at high field strengths.

Original language	English
Pages (from-to)	291-296
Number of pages	6
Journal	Lettere Al Nuovo Cimento
Volume	6
Issue number	4
DOIs	https://doi.org/10.1209/0295-5075/6/4/002
State	Published - 15 Jun 1988

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abstract = "Quantal and classical spectra are computed for a model 1-D hydrogen atom in an oscillating electrical field. Using a Fokker-Planck equation, the results are discussed in terms of restricted diffusion in action space due to the presence of broken-down KAM tori («Cantori»). The fluctuations diminish during the onset of chaos and settle down to the expected Thomas-Porter behaviour only upon the final disappearance of Cantori at high field strengths.",

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N2 - Quantal and classical spectra are computed for a model 1-D hydrogen atom in an oscillating electrical field. Using a Fokker-Planck equation, the results are discussed in terms of restricted diffusion in action space due to the presence of broken-down KAM tori («Cantori»). The fluctuations diminish during the onset of chaos and settle down to the expected Thomas-Porter behaviour only upon the final disappearance of Cantori at high field strengths.

AB - Quantal and classical spectra are computed for a model 1-D hydrogen atom in an oscillating electrical field. Using a Fokker-Planck equation, the results are discussed in terms of restricted diffusion in action space due to the presence of broken-down KAM tori («Cantori»). The fluctuations diminish during the onset of chaos and settle down to the expected Thomas-Porter behaviour only upon the final disappearance of Cantori at high field strengths.

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Intensity fluctuations in quantal spectra as a measure of diffusion in phase space

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