Nonlinear friction in underdamped anharmonic stochastic oscillators
نویسندگان
چکیده
منابع مشابه
Vibrational Distribution Functions in Anharmonic Oscillators
A model has been developed to calculate the steady state vibrational distribution of an anharmonic oscillator under conditions of thermal nonequilibrium. The model includes vibration-vibration and vibrationtranslation collisional processes as well as radiative decay. Numerical calculations are shown to be in reasonably good agreement with experimental data obtained in electrically excited N^-CO...
متن کاملStochastic resonance in coupled underdamped bistable systems.
We study onset and control of stochastic resonance (SR) phenomenon in two driven bistable systems, mutually coupled and subjected to independent noises, taking into account the influence of both the inertia and the coupling. In the absence of coupling, we found two critical damping parameters: one for the onset of SR and another for which SR is optimum. We then show that in weakly coupled syste...
متن کاملStochastic resonance with different periodic forces in overdamped two coupled anharmonic oscillators
We study the stochastic resonance phenomenon in the overdamped two coupled anharmonic oscillators with Gaussian noise and driven by different external periodic forces. We consider (i) sine, (ii) square, (iii) symmetric saw-tooth, (iv) asymmetric saw-tooth, (v) modulus of sine and (vi) rectified sinusoidal forces. The external periodic forces and Gaussian noise term are added to one of the two s...
متن کاملN ov 2 00 6 Vibrational and stochastic resonances in two coupled overdamped anharmonic oscillators
We study the overdamped version of two coupled anharmonic oscillators under the influence of both lowand high-frequency forces respectively and a Gaussian noise term added to one of the two state variables of the system. The dynamics of the system is first studied in the presence of both forces separately without noise. In the presence of only one of the forces, no resonance behaviour is observ...
متن کاملQuantum anharmonic oscillators: a new approach
Abstract. The determination of the eigenenergies of a quantum anharmonic oscillator consists merely in finding the zeros of a function of the energy, namely the Wronskian of two solutions of the Schrödinger equation which are regular respectively at the origin and at infinity. We show in this paper how to evaluate that Wronskian exactly, except for numerical rounding errors. The procedure is il...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chaos: An Interdisciplinary Journal of Nonlinear Science
سال: 2020
ISSN: 1054-1500,1089-7682
DOI: 10.1063/5.0007581