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Communication Dans Un Congrès Année : 1986

Survey of correlation properties of polyatomic molecules vibrational energy levels using FT analysis

Résumé

In the last few years molecular spectroscopists have begun to study the highly excited vibrational levels of polyatomic molecules. In this high energy regime vibrational quantum numbers can no longer be intrinsically assigned (in contrast to vibrational levels at low energy). One can only characterize these levels by their correlation properties. The authors consider: short range correlations which are characterized by the next neighbor distribution, (NND). These correlations range from a Poisson (random or uncorrelated spectra) to a Wigner distribution (which shows 'level repulsion'); (ii) long range correlations are characterized by the$\mathrm{\Sigma ^{2}}$(L) and$\mathrm{\Delta _{3}}$(L) function. They describe the behavior which ranges from an uncorrelated spectra (Poisson statistic) to a spectra with 'spectral rigidity'.
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Dates et versions

hal-01023551 , version 1 (14-07-2014)

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Rémi Jost, Maurice Lombardi. Survey of correlation properties of polyatomic molecules vibrational energy levels using FT analysis. 2nd International Conference on Quantum Chaos and 4th International Colloquium on Statistical Nuclear Physics, 1986, Cuernavaca, Mexico. pp.72, ⟨10.1007/3-540-17171-1_5⟩. ⟨hal-01023551⟩
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