Noise-invoked resonances near a homoclinic bifurcation in the glow discharge plasma
DSpace at IIT Bombay
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Title |
Noise-invoked resonances near a homoclinic bifurcation in the glow discharge plasma
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Creator |
NURUJJAMAN, M
IYENGAR, ANS PARMANANDA, P |
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Subject |
stochastic resonance
oscillations excitation mechanism system |
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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.
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Publisher |
AMER PHYSICAL SOC
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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 |
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Type |
Article
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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 |
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Language |
en
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