The dynamics of a 1-d cubic oscillator having a time-dependent harmonic force constant is studied numerically by invoking the time-dependent Fourier grid Hamiltonian method. The temporal variation in K t causes the tunneling rate constant to decrease or increase, depending upon the nature of the tim
✦ LIBER ✦
On the phase-space dynamics of a time-dependent harmonic oscillator at finite temperature
✍ Scribed by B. Remaud; E.S. Hernández
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 592 KB
- Volume
- 107
- Category
- Article
- ISSN
- 0378-4371
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A harmonic oscillator with time-dependent force constant when perturbed by a weak static quartic anharmonicity ti4, 1 small, is shown to generate new features in the dynamics. For weak coupling, both time-dependent perturbation theoretical analysis and near-exact numerical calculations predict that