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Collective oscillations in irreversible coagulation driven by monomer inputs and large-cluster outputs

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Ball, Robin, Connaughton, Colm, Jones, Peter P., Rajesh, R. and Zaboronski, Oleg V. (2012) Collective oscillations in irreversible coagulation driven by monomer inputs and large-cluster outputs. Physical Review Letters, Vol.109 (No.16). Article no. 168304 . doi:10.1103/PhysRevLett.109.168304 ISSN 0031-9007.

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Official URL: http://dx.doi.org/10.1103/PhysRevLett.109.168304

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Abstract

We describe collective oscillatory behavior in the kinetics of irreversible coagulation with a constant input of monomers and removal of large clusters. For a broad class of collision rates, this system reaches a nonequilibrium stationary state at large times and the cluster size distribution tends to a universal form characterized by a constant flux of mass through the space of cluster sizes. Universality, in this context, means that the stationary state becomes independent of the cutoff as the cutoff grows. This universality is lost, however, if the aggregation rate between large and small clusters increases sufficiently steeply as a function of cluster sizes. We identify a transition to a regime in which the stationary state vanishes as the cutoff grows. This nonuniversal stationary state becomes unstable as the cutoff is increased. It undergoes a Hopf bifurcation after which the stationary state is replaced by persistent and periodic collective oscillations. These oscillations, which bear some similarities to relaxation oscillations in excitable media, carry pulses of mass through the space of cluster sizes such that the average mass flux through any cluster size remains constant. Universality is partially restored in the sense that the scaling of the period and amplitude of oscillation is inherited from the dynamical scaling exponents of the universal regime.

Item Type: Journal Article
Subjects: Q Science > QA Mathematics
Divisions: Faculty of Science, Engineering and Medicine > Research Centres > Centre for Complexity Science
Faculty of Science, Engineering and Medicine > Science > Mathematics
Faculty of Science, Engineering and Medicine > Science > Physics
Journal or Publication Title: Physical Review Letters
Publisher: American Physical Society
ISSN: 0031-9007
Official Date: 2012
Dates:
DateEvent
2012Published
Volume: Vol.109
Number: No.16
Page Range: Article no. 168304
DOI: 10.1103/PhysRevLett.109.168304
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
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