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Noise-invoked resonances near a homoclinic bifurcation in the glow discharge plasma

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Title Noise-invoked resonances near a homoclinic bifurcation in the glow discharge plasma
 
Creator NURUJJAMAN, M
IYENGAR, ANS
PARMANANDA, P
 
Subject stochastic resonance
oscillations
excitation
mechanism
system
 
Description Stochastic resonance (SR) and coherence resonance (CR) have been studied experimentally in discharge plasmas close to a homoclinic bifurcation. For the SR phenomenon, it is observed that a superimposed subthreshold periodic signal can be recovered via stochastic modulations of the discharge voltage. Furthermore, it is realized that even in the absence of a subthreshold deterministic signal, the system dynamics can be recovered and optimized using noise. This effect is defined as CR in the literature. In the present experiments, induction of SR and CR is quantified using the absolute mean difference and normalized variance techniques, respectively.
 
Publisher AMER PHYSICAL SOC
 
Date 2011-07-16T22:19:49Z
2011-12-26T12:49:59Z
2011-12-27T05:35:51Z
2011-07-16T22:19:49Z
2011-12-26T12:49:59Z
2011-12-27T05:35:51Z
2008
 
Type Article
 
Identifier PHYSICAL REVIEW E, 78(2), -
1539-3755
http://dx.doi.org/10.1103/PhysRevE.78.026406
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4544
http://hdl.handle.net/10054/4544
 
Language en