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Article Dans Une Revue Physical Review Letters Année : 1994

Transition to Soft Chaos in the Vibrational Spectrum of the CS2 Molecule

Résumé

In the vibrational spectrum of the CS2 molecule, a clear transition in the ``staircase'' function N(E) has been observed for the first time at Ec~13 000 cm-1. The analysis for spectral correlations over short and large distances shows that this transition could be associated with a transition towards a classically chaotic regime. A vibrational spectrum of high quality has been obtained of the CS2 molecule in its fundamental electronic state. This spectrum of a single symmetry shows 966 purely vibrational levels (J''=0) up to 19 200 cm-1. The absolute precision of the measured position of the levels is 0.05 cm-1, and the dynamic intensity range is greater than 5000.
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Dates et versions

hal-01118212 , version 1 (18-02-2015)

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G. Sitja, J. P. Pique. Transition to Soft Chaos in the Vibrational Spectrum of the CS2 Molecule. Physical Review Letters, 1994, 73 (2), pp.232-235. ⟨10.1103/PhysRevLett.73.232⟩. ⟨hal-01118212⟩
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