Publication:
Noise effects on synchronized globally coupled oscillators

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ISSN: 0295-5075 (print version)
ISSN: 1286-4854 (online version)
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1998-11-15
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Institute of Physics
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The synchronized phase of globally coupled identical nonlinear oscillators subject to noise fluctuations is studied by means of a new analytical approach able to tackle general couplings, nonlinearities, and noise temporal correlations. Our results show that the interplay between coupling and noise modi es the e ective frequency of the system in a nontrivial way. Whereas for linear couplings the e ect of noise is always to increase the e ective frequency, for nonlinear couplings the noise influence is shown to be positive or negative depending on the problem parameters. Possible experimental veri cation of the results is discussed.
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Europhysics Letters, vol. 44, n. 4, 15 november 1998. Pp. 409-415