Driven Morse oscillator: Classical chaos, quantum theory, and photodissociation

Journal Article · Mon Feb 01 00:00:00 EST 1988 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.37.796· OSTI ID:5505444

Goggin, M E; Milonni, P W

We compare the classical and quantum theories of a Morse oscillator driven by a sinusoidal field, focusing attention on multiple-photon excitation and dissociation. In both the classical and quantum theories the threshold field strength for dissociation may be estimated fairly accurately on the basis of classical resonance overlap, and the classical and quantum results for the threshold are in good agreement except near higher-order classical resonances and quantum multiphoton resonances. We discuss the possibility of ''quantum chaos'' in such driven molecular systems and use the Morse oscillator to test the manifestations of classical resonance overlap suggested semiclassically.

• Research Organization: Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
• OSTI ID: 5505444
• Journal Information: Phys. Rev. A; (United States), Vol. 37:3
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
MOLECULES
DISSOCIATION
MULTI-PHOTON PROCESSES
EQUATIONS OF MOTION
MORSE POTENTIAL
OSCILLATORS
PHOTON COLLISIONS
QUANTUM ELECTRODYNAMICS
COLLISIONS
DIFFERENTIAL EQUATIONS
ELECTRODYNAMICS
ELECTRONIC EQUIPMENT
EQUATIONS
EQUIPMENT
FIELD THEORIES
PARTIAL DIFFERENTIAL EQUATIONS
POTENTIALS
QUANTUM FIELD THEORY
657002* - Theoretical & Mathematical Physics- Classical & Quantum Mechanics