Möbius, Ronny

[["dc.bibliographiccitation.firstpage","4806"],["dc.bibliographiccitation.issue","27"],["dc.bibliographiccitation.journal","Soft Matter"],["dc.bibliographiccitation.lastpage","4812"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Moebius, Ronny"],["dc.contributor.author","Heussinger, Claus"],["dc.date.accessioned","2018-11-07T09:46:03Z"],["dc.date.available","2018-11-07T09:46:03Z"],["dc.date.issued","2014"],["dc.description.abstract","We use computer simulations to study highly dense systems of granular particles that are driven by oscillating forces. We implement different dissipation mechanisms that are used to extract the injected energy. In particular, the action of a simple local Stokes' drag is compared with non-linear and history-dependent frictional forces that act either between particle pairs or between particles and an external container wall. The Stokes' drag leads to particle motion that is periodic with the driving force, even at high densities around close packing where particles undergo frequent collisions. With the introduction of inter-particle frictional forces this \"interacting absorbing state\" is destroyed and particles start to diffuse around. By reducing the density of the material we go through another transition to a \"non-interacting\" absorbing state, where particles independently follow the force-induced oscillations without collisions. In the system with particle-wall frictional interactions this transition has signs of a discontinuous phase transition. It is accompanied by a diverging relaxation time, but not by a vanishing order parameter, which rather jumps to zero at the transition."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft, Emmy Noether program [He 6322/1-1]"],["dc.identifier.doi","10.1039/c4sm00178h"],["dc.identifier.isi","000338123700006"],["dc.identifier.pmid","24838939"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/11725"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34777"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Royal Soc Chemistry"],["dc.relation.issn","1744-6848"],["dc.relation.issn","1744-683X"],["dc.relation.orgunit","Fakultät für Physik"],["dc.rights","CC BY 3.0"],["dc.title","(Ir)reversibility in dense granular systems driven by oscillating forces"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","036209"],["dc.bibliographiccitation.issue","3 Pt 2"],["dc.bibliographiccitation.journal","Physical Review. E"],["dc.bibliographiccitation.volume","83"],["dc.contributor.author","Vallès-Codina, Oriol"],["dc.contributor.author","Möbius, Ronny"],["dc.contributor.author","Rüdiger, Sten"],["dc.contributor.author","Schimansky-Geier, Lutz"],["dc.date.accessioned","2022-11-17T15:02:25Z"],["dc.date.available","2022-11-17T15:02:25Z"],["dc.date.issued","2011-03"],["dc.description.abstract","We study time-delayed coupling in one-dimensional arrays of discrete excitable FitzHugh-Nagumo elements. For small time delays in an excitatory coupling, noise-triggered spikes undergo a slight prolongation. For larger delay times, the coupling to adjacent elements leads to a splitting of spikes and an \"echo\" effect that produces dampened series of spikes. For very large delay times, a transition to a stationary regime appears, as the spikes are sustained by mutual excitations, resulting in antiphase synchronization of all elements. We characterize several features exhibited by the system, such as speed and duration of pulses as well as bifurcations leading to the stationary regime."],["dc.identifier.doi","10.1103/PhysRevE.83.036209"],["dc.identifier.pmid","21517577"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/117133"],["dc.language.iso","en"],["dc.relation.eissn","1550-2376"],["dc.relation.issn","1539-3755"],["dc.relation.issn","1550-2376"],["dc.title","Traveling echo waves in an array of excitable elements with time-delayed coupling"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]