Anharmonic force constants of acetylene. Cubic and quartic force constants of acetylene; calculations with a general quartic force field and an empirical anharmonic potential function

The dynamics of a harmonic oscillator wi

The dynamics of a harmonic oscillator with time-dependent force constant and perturbed by weak quartic anharmonicity

✍ Pranab Sarkar; Satrajit Adhikari; S.P. Bhattacharyya 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 616 KB

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