CMSP Seminar @ICTP Stasi Seminar Room Wednesday 20 July at 4.00 p.m. - Hilda CERDEIRA

[Condensed Matter Section]

Condensed Matter and Statistical Physics Seminar
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Wednesday 20 July at 16.00 hrs
Luigi Stasi Seminar Room, first floor, Leonardo building


Hilda CERDEIRA
Instituto de Fisica Teorica, UNESP, Sao Paulo, Brazil

Title: Collective Cohesive Motion of Chaotic Attractors


Abstract:

We report a simple model of two drive-response type coupled chaotic 
oscillators

where the reponse system copies the nonlinearity of the driver system. 
It leads

to a coherent motion of the coupled systems, however, it establishes a 
separating

distance, constant in time, between the driver and response attactors 
that depends

upon the initial state. The coupled system responds to external 
obstacles, modelled

by a short-duration pulses acting either on the driver or the response 
system, by a

coherent shifting of the distance and, readjust their distance as and 
when necessary

by talking to each other via a mutual exhange of feedback information. 
We provide

numerical confirmation in a Jerk system and extend the results to a 
collection of

oscillators to produce a cohesive motion.