Parametrically Driven Nonlinear Oscillators with an Impurity

Chin. Phys. Lett.

2002, Vol. 19

Issue (2): 246-248 DOI:

Original Articles

Parametrically Driven Nonlinear Oscillators with an Impurity

ZHANG Zhuo;TANG Yi

Department of Physics, Xiangtan University, Xiangtan 411105

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ZHANG Zhuo, TANG Yi 2002 Chin. Phys. Lett. 19 246-248

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Abstract By virtue of the method of multiple scales, we study a chain of
parametrically driven nonlinear oscillators with a mass impurity. An equation is presented to describe the nonlinear wave of small amplitude in the chain. In our derivation, the equation is applicable to any eigen mode of coupled pendulum. Our result shows that a nonpropagation soliton emerges as the lowest or highest eigen mode of coupled pendulum is excited, and the impurity tends to pin the nonpropagation soliton excitation.

Keywords: 63.20.Ry 63.20.Pw

Published: 01 February 2002

PACS:	63.20.Ry	(Anharmonic lattice modes)
	63.20.Pw	(Localized modes)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2002/V19/I2/0246

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