ELFT HÍRADÓ

[Horváth Zsolt Endre <horvath.zsolt.endre AT ek.hun-ren.hu>]

Kedves Kollégák!


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Egy későbbi időpontban kerül majd rá sor.



Kiss Z. István (Department of Chemistry, Saint Louis University, St 
Louis,USA)

Leveraging Diversity for Synchrony: Emergent Collective Behavior of 
 Coupled Nonlinear Oscillators



Abstract
It is widely held that identical systems behave similarly under 
comparable conditions. Yet, for
systems that interact through a network, symmetry breaking often leads 
to scenarios in which this
expectation does not hold, such as the lack of frequency synchrony for 
identical phase oscillator
networks exhibiting chimera states. Here we demonstrate in series of 
experiments with
electrochemical oscillators that generic differences in oscillator 
properties that affect the
natural frequencies can have beneficial effects on extent of 
synchronization. Two examples are
given, in which random or designed heterogeneities can enhance 
synchrony.  In particular,  we show
that for a broad class of networks, asynchronous states can be converted 
into frequency synchronized
states when otherwise identical oscillators are detuned to have 
different intrinsic frequencies.
Frequency synchronization is achieved over a range of intrinsic 
frequency detuning and is thus a
robust effect that does not depend on fine-tuning.  These results, which 
are supported by
simulations and theory, reveal a counterintuitive opportunity for 
parametric control of network
dynamics that relies on exploiting system heterogeneity to produce 
robust behavioral homogeneity.


A   szemináriumon minden érdeklődőt szívesen látunk!

Horváth Zsolt Endre
Szeminárium koordinátor

--
Dr. Zsolt E. HORVÁTH
Institute for Technical Physics and Materials Science,
HUN-REN Centre for Energy Research
Konkoly Thege Rd. 29-33, 1121 Budapest,
Mail: P.O.Box 49, H-1525 Budapest, Hungary
Phone: +36-1-392-2680, Fax: +36-1-392-2226
e-mail:horvath.zsolt.endre AT ek.hun-ren.hu