Oscillator Subject to Periodic and Random Forces

Moshe Gitterman

Department of Physics, Bar Ilan University, Ramat Gan, Israel.

DOI: 10.4236/jmp.2013.41015                

Abstract

We illustrate the influence of an external periodic force and noise on a physical system by the example of an oscillator. These two forces seem to be the reverse of each other, since the latter leads to disorder while the former works in an orderly fashion. Nevertheless, it is shown that they may influence a system in a similar way, sometime even substituting for one another. These examples serve to illustrate one of the main achievements of twentieth-century physics, which has established that deterministic and random phenomena complement rather than contradict each other.

Keywords

Stochastic Oscillator; Periodic Force; Stochastic and Vibrational Resonances; Birth-Death Process

Conflicts of Interest

The authors declare no conflicts of interest.

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