Spatiotemporal stochastic resonance in a system of coupled diode resonators

被引：85

作者：

Locher, M

Johnson, GA

Hunt, ER

机构：

[1] Department of Physics and Astronomy, Ohio University, Athens, OH

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.77.4698

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recently, the phenomenon of array enhanced stochastic resonance was demonstrated via numerical simulations by Lindner ef al. [Phys. Rev. Lett. 75, 3 (1995)]. We present experimental evidence that the signal-to-noise ratio (SNR) of the output signal of a single diode resonator can be significantly improved by coupling it diffusively into an array of up to 32 nonidentical resonators. It is shown that the maximum SNR coincides with optimal spatiotemporal synchronization of the chain. We briefly address the connection between spatiotemporal stochastic resonance and the presence of kink-antikink pairs in the array.

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页码：4698 / 4701

页数：4

相关论文

共 16 条

[1] STOCHASTIC RESONANCE IN THE LANDAU-GINZBURG EQUATION [J].

BENZI, R ;

SUTERA, A ;

VULPIANI, A .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1985, 18 (12) :2239-2245

[2] STOCHASTIC RESONANCE IN GLOBALLY COUPLED NONLINEAR OSCILLATORS [J].

BULSARA, AR ;

SCHMERA, G .

PHYSICAL REVIEW E, 1993, 47 (05) :3734-3737

[3] Tuning in to noise [J].

Bulsara, AR ;

Gammaitoni, L .

PHYSICS TODAY, 1996, 49 (03) :39-45

[4] STOCHASTIC RESONANCE WITHOUT TUNING [J].

COLLINS, JJ ;

CHOW, CC ;

IMHOFF, TT .

NATURE, 1995, 376 (6537) :236-238

[5] Stochastic resonance [J].

Gammaitoni, L ;

Hanggi, P ;

Jung, P ;

Marchesoni, F .

REVIEWS OF MODERN PHYSICS, 1998, 70 (01) :223-287

[6] COUPLING ENHANCES STOCHASTIC RESONANCE IN NONLINEAR DYNAMIC ELEMENTS DRIVEN BY A SINUSOID PLUS NOISE [J].

INCHIOSA, ME ;

BULSARA, AR .

PHYSICS LETTERS A, 1995, 200 (3-4) :283-288

[7]

INCHIOSA ME, 1995, P M NONL DYN FULL SP

[8] STABILIZED SPATIOTEMPORAL WAVES IN A CONVECTIVELY UNSTABLE OPEN FLOW SYSTEM - COUPLED DIODE RESONATORS [J].

JOHNSON, GA ;

LOCHER, M ;

HUNT, ER .

PHYSICAL REVIEW E, 1995, 51 (03) :R1625-R1628

[9] Stable states and kink dynamics in a system of coupled diode resonators [J].

Johnson, GA ;

Locher, M ;

Hunt, ER .

PHYSICA D, 1996, 96 (1-4) :367-374

[10] COLLECTIVE RESPONSE IN GLOBALLY COUPLED BISTABLE SYSTEMS [J].

JUNG, P ;

BEHN, U ;

PANTAZELOU, E ;

MOSS, F .

PHYSICAL REVIEW A, 1992, 46 (04) :R1709-R1712