Please use this identifier to cite or link to this item: https://physrep.ff.bg.ac.rs/handle/123456789/536
Title: Effects of external noise on threshold-induced correlations in ferromagnetic systems
Authors: Jovković, Dragutin
Janićević, Sanja 
Mijatović, Svetislav 
Laurson, Lasse
Spasojević, Djordje 
Issue Date: Jun-2021
Journal: Physical review. E
Abstract: 
In the present paper we investigate the impact of the external noise and detection threshold level on the simulation data for the systems that evolve through metastable states. As a representative model of such systems we chose the nonequilibrium athermal random-field Ising model with two types of the external noise, uniform white noise and Gaussian white noise with various different standard deviations, imposed on the original response signal obtained in model simulations. We applied a wide range of detection threshold levels in analysis of the signal and show how these quantities affect the values of exponent γ_{S/T} (describing the scaling of the average avalanche size with duration), the shift of waiting time between the avalanches, and finally the collapses of the waiting time distributions. The results are obtained via extensive numerical simulations on the equilateral three-dimensional cubic lattices of various sizes and disorders.
URI: https://physrep.ff.bg.ac.rs/handle/123456789/536
ISSN: 2470-0045
DOI: 10.1103/PhysRevE.103.062114
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