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Title

Transient dynamics in a nonequilibrium superdiffusive reaction-diffusion process: Nonequilibrium random search as a case study

AuthorsRusch, F.; Wosniack, M. E.; Raposo, E. P.; Viswanathan, G. M.; da Luz, M. G. E.
Issue Date2020
PublisherAmerican Physical Society
CitationPhysical Review E 102 : 012126 (2020)
AbstractTransient regimes, often difficult to characterize, can be fundamental in establishing final steady states features of reaction-diffusion phenomena. This is particularly true in ecological problems. Here, through both numerical simulations and an analytic approximation, we analyze the transient of a nonequilibrium superdiffusive random search when the targets are created at a certain rate and annihilated upon encounters (a key dynamics, e.g., in biological foraging). The steady state is achieved when the number of targets stabilizes to a constant value. Our results unveil how key features of the steady state are closely associated to the particularities of the initial evolution. The searching efficiency variation in time is also obtained. It presents a rather surprising universal behavior at the asymptotic limit. These analyses shed some light into the general relevance of transients in reaction-diffusion systems.
DescriptionEste artículo contiene 8 páginas, 4 figuras.
Publisher version (URL)https://doi.org/10.1103/PhysRevE.102.012126
URIhttp://hdl.handle.net/10261/218981
ISSN1539-3755
E-ISSN1550-2376
Appears in Collections:(CEAB) Artículos
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