Assessing the predictability of anharmonic vibrational modes at the example of hydroxyl groups–ad hoc construction of localised modes and the influence of structural …

MJ Schuler, TS Hofer, CW Huck - Physical Chemistry Chemical …, 2017 - pubs.rsc.org
The performance of the grid-based Numerov procedure for the prediction of fundamental as
well as the first vibrational overtone has been systematically probed for harmonic and …

Nonlinear vibration of a two-mass system with nonlinear stiffnesses

SK Lai, CW Lim - Nonlinear Dynamics, 2007 - Springer
An analytical approach is developed for nonlinear free vibration of a conservative, two-
degree-of-freedom mass–spring system having linear and nonlinear stiffnesses. The main …

Analysis of the nonlinear vibration of a two-mass–spring system with linear and nonlinear stiffness

SHAH Kachapi, RV Dukkipati - Nonlinear Analysis: Real World …, 2010 - Elsevier
An analytical approach is developed for areas of nonlinear science such as the nonlinear
free vibration of a conservative, two-degree-of-freedom mass–spring system having linear …

A finite extensibility nonlinear oscillator

M Febbo - Applied Mathematics and Computation, 2011 - Elsevier
The dynamics of a finite extensibility nonlinear oscillator (FENO) is studied analytically by
means of two different approaches: a generalized decomposition method (GDM) and a …

Modified semi-classical methods for nonlinear quantum oscillations problems

V Moncrief, A Marini, R Maitra - Journal of mathematical physics, 2012 - pubs.aip.org
We develop a modified semi-classical approach to the approximate solution of
Schrödinger's equation for certain nonlinear quantum oscillations problems. In our …

Comparative study of quantum anharmonic potentials

P Amore, A Aranda, A De Pace, JA López - Physics Letters A, 2004 - Elsevier
We perform a study of various anharmonic potentials using a recently developed method.
We calculate both the wave functions and the energy eigenvalues for the ground and first …

An intuitive approach to the higher order solutions for classical and quantum oscillators of quartic anharmonicity

S Mandal - Physics Letters A, 2002 - Elsevier
An intuitive approach is used to propose the most general form of the solution of a classical
quartic anharmonic oscillator. The proposed (assumed) solution is a direct outcome of …

Study of the sextic and decatic anharmonic oscillators using an interpolating scale function

K Manimegalai, S Paul, MM Panja… - The European Physical …, 2020 - epjplus.epj.org
Anharmonic oscillators with the sextic and decatic potentials are studied employing the
refinable interpolating scale functions. This method yields highly accurate values of both …

Multiple-scale perturbation theory of generalized anharmonic oscillator

YF CHENG, TQ DAI - Chinese Physics C, 2006 - hepnp.ihep.ac.cn
Classical and quantum oscillator of generalized anharmonicity is solved analytically up to
the linear power of ε by using the multiple-scale perturbation method. The commutation …

Polynomial potentials and nilpotent groups

W Schweiger, WH Klink - arXiv preprint arXiv:2412.11157, 2024 - arxiv.org
This paper deals with the partial solution of the energy-eigenvalue problem for one-
dimensional Schr\" odinger operators of the form $ H_N= X_0^ 2+ V_N $, where $ V_N …