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Reduction from non-Markovian to Markovian dynamics: the case of aging in the noisy-voter model

AuthorsFernandez Peralta, Antonio; Khalil, Nagi ; Toral, Raúl
Issue Date2020
AbstractWe study memory dependent binary-state dynamics, focusing on the noisy-voter model. This is a non-Markovian process if we consider the set of binary states of the population as the description variables, or Markovian if we incorporate 'age', related to the time spent holding the same state, as a part of the description. We show that, in some cases, the model can be reduced to an effective Markovian process, where the age distribution of the population rapidly equilibrates to a quasi-steady state, while the global state of the system is out of equilibrium. This effective Markovian process shares the same phenomenology of the non-linear noisy-voter model and we establish a clear parallelism between these two extensions of the noisy-voter model.
Publisher version (URL)https://arxiv.org/abs/1910.13976
Appears in Collections:(IFISC) Artículos
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