A theory for spiral wave drift induced by ac and polarized electric fields in chemical excitable media
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-09092-6
Abstract: Spiral waves are shown to undergo directional drifts in the presence of ac and polarized electric fields when their frequencies are twice of the spiral frequencies. Here, we propose a quantitative description for the spiral… read more here.
Keywords: drift induced; polarized electric; electric fields; spiral wave ... See more keywords
Spiral wave initiation in excitable media
Sign Up to like & getrecommendations! Published in 2018 at "Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences"
DOI: 10.1098/rsta.2017.0379
Abstract: Spiral waves represent an important example of dissipative structures observed in many distributed systems in chemistry, biology and physics. By definition, excitable media occupy a stationary resting state in the absence of external perturbations. However,… read more here.
Keywords: spiral wave; chemistry; wave initiation; biology ... See more keywords
Stable and unstable vortex knots in excitable media.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review. E"
DOI: 10.1103/physreve.99.012211
Abstract: We study the dynamics of knotted vortices in a bulk excitable medium using the FitzHugh-Nagumo model. From a systematic survey of all knots of at most eight crossings we establish that the generic behavior is… read more here.
Keywords: unstable vortex; geometry; stable unstable; excitable media ... See more keywords
Kramers Rate Theory of Pacemaker Dynamics in Noisy Excitable Media.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.048101
Abstract: Rhythmic activities, which are usually driven by pacemakers, are common in biological systems. In noisy excitable media, pacemakers are self-organized firing clusters, but the underlying dynamics remains to be elucidated. Here we develop a Kramers… read more here.
Keywords: theory; excitable media; kramers rate; rate theory ... See more keywords