Chaos in the multiple photon excitation of molecules due to vibration-rotation coupling at lowest order

Journal Article · Wed Nov 30 23:00:00 EST 1983 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.445697· OSTI ID:5666909

Galbraith, H W; Ackerhalt, J R; Milonni, P W

We study the multiple photon excitation of a molecule with a triply degenerate near-resonant IR-active mode. The molecule is described by its zeroth-order Hamiltonian as an uncoupled harmonic oscillator-rigid rotor. The molecule-field interaction is dipolar with the field treated semiclassically. The Hiesenberg equations of motion are solved in the classical approximation and chaos is found when the photon absorption exceeds the t = 0 angular momentum. The origin of the chaos is due to the nonconservation of the molecule angular momentum.

• Research Organization: Theoretical Division, MS J569, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
• OSTI ID: 5666909
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 79:11; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640305* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Theory-- (-1987)
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR MOMENTUM
COUPLING
DIFFERENTIAL EQUATIONS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EQUATIONS
EQUATIONS OF MOTION
EXCITATION
EXCITED STATES
MOLECULES
MULTI-PHOTON PROCESSES
PARTIAL DIFFERENTIAL EQUATIONS
ROTATIONAL STATES
VIBRATIONAL STATES