English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Solitons, defined as nonlinear waves which can reflect from boundaries ortransmit through each other, are found in conservative, fully integrablesystems. Similar phenomena, dubbed quasi-solitons, have been observed also indissipative, "excitable" systems, either at finely tuned parameters (near abifurcation) or in systems with cross-diffusion. Here we demonstrate thatquasi-solitons can be robustly observed in excitable systems with excitablekinetics and with self-diffusion only. This includes quasi-solitons of fixedshape (like KdV solitons) or envelope quasi-solitons (like NLS solitons). Thiscan happen in systems with more than two components, and can be explained byeffective cross-diffusion, which emerges via adiabatic elimination of a fastbut diffusing component. We describe here a reduction procedure can be used forthe search of complicated wave regimes in multi-component, stiff systems bystudying simplified, soft systems.

Quasisolitons in self-diffusive excitable systems, or Why asymmetric diffusivity does not violate the Second Law