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VERSION:2.0
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CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20260814T223734Z
LAST-MODIFIED:20160923T194433Z
DTSTART:20161018T193000Z
DTEND:20161018T203000Z
UID:event1635@bu.edu
URL:http://physics.bu.edu/internal/events/show/1635
SUMMARY:Complexity and self-localization in classical and quantum supercond
	ucting metamaterials
DESCRIPTION:Featuring George Tsironis\, University of Crete\n\nPart of the 
	Physics Department Colloquia Series.\n\nSuperconducting metamaterials compr
	ised of rf superconducting quantum interference devices (SQUIDs) form a com
	plex nonlinear medium with interesting tuneability and dynamic multistabili
	ty properties. Depending on the parameters\, the SQUID metamaterial may ope
	rate in a negative permeability regime\, induce intrinsic nonlinear localiz
	ed modes\, tame disorder through hysteretic loops\, or transmit through non
	linear frequency bands. The SQUID metamaterial can also enter into a partia
	lly coherent regime and form stable chimera states. In the quantum realm\, 
	on the other hand\, SQUIDs may be used as qubits and hence as building bloc
	ks of quantum computers. The superconducting qubit "meta-atoms" may interac
	t through an injected electromagnetic field and form a propagating "quantum
	 breather"\, i.e. a compound semi-classical propagating mode induced by the
	 nonlinearity of the interaction. In this presentation\, we will first focu
	s on the classical results and outline the nonlinear dynamics aspects of th
	e SQUID metamaterial and then switch to the quantum regime and describe the
	 dynamics of the collective mode and its properties.
LOCATION:SCI 109\, 590 Commonwealth Avenue\, 02215
STATUS:TENTATIVE
CLASS:PUBLIC
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