Stochastic resonance in the majority vote model on regular and small-world lattices
PBN-AR
Instytucja
Wydział Fizyki (Politechnika Warszawska)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
International Journal of Modern Physics B (15pkt w roku publikacji)
ISSN
0217-9792
EISSN
Wydawca
DOI
URL
Rok publikacji
2017
Numer zeszytu
29
Strony od-do
1750214-1750214
Numer tomu
31
Identyfikator DOI
Liczba arkuszy
0.3
Autorzy
(liczba autorów: 1)
Słowa kluczowe
en
Stochastic resonance
majority-vote model
Streszczenia
Język
en
Treść
The majority vote model with two states on regular and small-world networks is considered under the influence of periodic driving. Monte Carlo simulations show that the time-dependent magnetization, playing the role of the output signal, exhibits maximum periodicity at nonzero values of the internal noise parameter q, which is manifested as the occurrence of the maximum of the spectral power amplification; the location of the maximum depends in a nontrivial way on the amplitude and frequency of the periodic driving as well as on the network topology. This indicates the appearance of stochastic resonance in the system as a function of the intensity of the internal noise. Besides, for low frequencies and for certain narrow ranges of the amplitudes of the periodic driving double maxima of the spectral power amplification as a function of q occur, i.e., stochastic multiresonance appears. The above-mentioned results quantitatively agree with those obtained from numerical simulations of the mean-field equations for the time-dependent magnetization. In contrast, analytic solutions for the spectral power amplification obtained from the latter equations using the linear response approximation deviate significanity from the numerical results since the effect of the periodic driving on the system is not small even for vanishing amplitude.
Inne
System-identifier
WUTaffdc56c61eb45668a2c9fc5e479d0f0
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