Nonlinear resonance and dynamical chaos in a diatomic molecule driven by a resonant ir field

Journal Article · Sun Oct 01 00:00:00 EDT 1995 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.52.3074· OSTI ID:118460

Berman, G P; Bulgakov, E N; Holm, D D ^[1]

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1. Theoretical Division, T-13, MS-B213, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

We consider the transition from regular motion to dynamical chaos in a classical model of a diatomic molecule which is driven by a circularly polarized resonant ir field. Under the conditions of a nearly two-dimensional case, the Hamiltonian reduces to that for the nonintegrable motion of a charged particle in an electromagnetic wave [A. J. Lichtenberg and M. A. Lieberman, {ital Regular} {ital and} {ital Stochastic} {ital Motion} (Springer-Verlag, City, 1983)]. In the general case, the transition to chaos is connected with the overlapping of vibrational-rotational nonlinear resonances and appears even at rather low radiation field intensity, {ital S}{approx_gt}1 GW/cm{sup 2}. We also discuss the possibility of experimentally observing this transition.

• OSTI ID: 118460
• Journal Information: Physical Review A, Vol. 52, Issue 4; Other Information: PBD: Oct 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
MOLECULES
RESONANCE
DYNAMICS
NONLINEAR PROBLEMS
ELECTROMAGNETIC RADIATION
HAMILTONIANS
VIBRATIONAL STATES
ROTATIONAL STATES
POLARIZATION