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METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20260915T200537Z
LAST-MODIFIED:20170913T200604Z
DTSTART:20171018T150000Z
DTEND:20171018T160000Z
UID:event1814@bu.edu
URL:http://physics.bu.edu/internal/events/show/1814
SUMMARY:"Cluster Synchronization of Chaotic Systems in Large Networks"
DESCRIPTION:Featuring Louis Pecora\, United States Naval Research Laborator
	y\nHosted by: David Campbell\n\nPart of the Condensed Matter Theory Seminar
	 Series.\n\nSynchronization of two chaotic systems is a well-known phenomen
	on\, although it still seems like an oxymoron. But when many oscillators (c
	haotic or not) are linked together in a network causing them to interact\, 
	they can synchronize to other oscillators in the network\, but not necessar
	ily all of them.  The network can break up into clusters of synchronized sy
	stems where the oscillators in the same cluster synchronize\, but not to os
	cillators in other clusters even though all clusters are interconnected and
	 influence each other.  I show that such patterns of synchronization can be
	 related to the symmetries of the network. One can use computational group 
	theory to find all the symmetries and hence\, clusters.  Such symmetries ca
	n be huge in number (e.g. 10^66 symmetries in a network of 100 oscillators)
	\, but can be found in short time. I'll show how to analyze such systems\, 
	determine the stability of the cluster patterns\, and find interesting patt
	erns of desynchronization bifurcations. I'll show how one can generate such
	 patterns in an electro-optical system. The methods I present will include 
	the construction of synchronization patterns that do not arise from symmetr
	ies\, but can be built up from symmetry clusters make symmetries the fundam
	ental concept in many cluster patterns.
LOCATION:SCI 328\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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