Journal of Modern Physics

Volume 6, Issue 4 (March 2015)

ISSN Print: 2153-1196   ISSN Online: 2153-120X

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Classical Chaos on Double Nonlinear Resonances in Diatomic Molecules

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DOI: 10.4236/jmp.2015.64054    3,871 Downloads   4,753 Views  Citations

ABSTRACT

Classical chaotic behavior in diatomic molecules is studied when chaos is driven by a circularly polarized resonant electric field and expanding up to fourth order of approximation the Morse’s potential and angular momentum of the system. On this double resonant system, we find a weak and a strong stationary (or critical) points where the chaotic characteristics are different with respect to the initial conditions of the system. Chaotic behavior around the weak critical point appears at much weaker intensity on the electric field than the electric field needed for the chaotic behavior around the strong critical point. This classical chaotic behavior is determined through Lyapunov exponent, separation of two nearby trajectories, and Fourier transformation of the time evolution of the system. The threshold of the amplitude of the electric field for appearing the chaotic behavior near each critical point is different and is found for several molecules.

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López, G. and Mercado, A. (2015) Classical Chaos on Double Nonlinear Resonances in Diatomic Molecules. Journal of Modern Physics, 6, 496-509. doi: 10.4236/jmp.2015.64054.

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