Noise-enhanced synchronization of homoclinic chaos in a CO2 laser

Changsong Zhou; J. Kurths; E. Allaria; S. Boccaletti; R. Meucci; F. T. Arecchi

doi:10.1103/PhysRevE.67.015205

Noise-enhanced synchronization of homoclinic chaos in a CO₂ laser

Changsong Zhou^*, J. Kurths, E. Allaria, S. Boccaletti, R. Meucci, F. T. Arecchi

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Journal article › peer-review

64 Citations (Scopus)

Abstract

Many chaotic oscillators have rather coherent phase dynamics but strong fluctuation in the amplitudes. Conversely, homoclinic chaos is characterized by quite regular spikes but strong fluctuation in their time intervals. We study the effects of noise on the synchronization of homoclinic chaos to a weak periodic signal and demonstrate numerically and experimentally in a [Formula presented] laser system that noise enhances synchronization of homoclinic chaos. The system exhibits both conventional resonance versus driving frequency and stochastic resonance with respect to noise intensity.

Original language	English
Article number	015205
Number of pages	4
Journal	Physical Review E
Volume	67
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevE.67.015205
Publication status	Published - Jan 2003

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10.1103/PhysRevE.67.015205

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title = "Noise-enhanced synchronization of homoclinic chaos in a CO2 laser",

abstract = "Many chaotic oscillators have rather coherent phase dynamics but strong fluctuation in the amplitudes. Conversely, homoclinic chaos is characterized by quite regular spikes but strong fluctuation in their time intervals. We study the effects of noise on the synchronization of homoclinic chaos to a weak periodic signal and demonstrate numerically and experimentally in a [Formula presented] laser system that noise enhances synchronization of homoclinic chaos. The system exhibits both conventional resonance versus driving frequency and stochastic resonance with respect to noise intensity.",

author = "Changsong Zhou and J. Kurths and E. Allaria and S. Boccaletti and R. Meucci and Arecchi, {F. T.}",

note = "This work was supported by Grant No. SFB555, Humboldt-Foundation, and EC Network HPRN under Grant No. CT 2000 00158.",

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T1 - Noise-enhanced synchronization of homoclinic chaos in a CO2 laser

AU - Zhou, Changsong

AU - Kurths, J.

AU - Allaria, E.

AU - Boccaletti, S.

AU - Meucci, R.

AU - Arecchi, F. T.

N1 - This work was supported by Grant No. SFB555, Humboldt-Foundation, and EC Network HPRN under Grant No. CT 2000 00158.

PY - 2003/1

Y1 - 2003/1

N2 - Many chaotic oscillators have rather coherent phase dynamics but strong fluctuation in the amplitudes. Conversely, homoclinic chaos is characterized by quite regular spikes but strong fluctuation in their time intervals. We study the effects of noise on the synchronization of homoclinic chaos to a weak periodic signal and demonstrate numerically and experimentally in a [Formula presented] laser system that noise enhances synchronization of homoclinic chaos. The system exhibits both conventional resonance versus driving frequency and stochastic resonance with respect to noise intensity.

AB - Many chaotic oscillators have rather coherent phase dynamics but strong fluctuation in the amplitudes. Conversely, homoclinic chaos is characterized by quite regular spikes but strong fluctuation in their time intervals. We study the effects of noise on the synchronization of homoclinic chaos to a weak periodic signal and demonstrate numerically and experimentally in a [Formula presented] laser system that noise enhances synchronization of homoclinic chaos. The system exhibits both conventional resonance versus driving frequency and stochastic resonance with respect to noise intensity.

UR - https://journals.aps.org/pre/abstract/10.1103/PhysRevE.67.015205

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DO - 10.1103/PhysRevE.67.015205

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VL - 67

JO - Physical Review E

JF - Physical Review E

IS - 1

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ER -

Noise-enhanced synchronization of homoclinic chaos in a CO₂ laser

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