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BEGIN:VEVENT
DTSTAMP:20260826T031953Z
LAST-MODIFIED:20150326T144523Z
DTSTART:20150401T150000Z
DTEND:20150401T160000Z
UID:event1434@bu.edu
URL:http://physics.bu.edu/internal/events/show/1434
SUMMARY:Stroboscopic Symmetry Protected Topological Phases
DESCRIPTION:Featuring Dr. Luiz Santos\, Perimeter Institute\nHosted by: Cla
	udio Chamon\n\nPart of the Condensed Matter Theory Seminar Series.\n\nAbstr
	act:\nRecently\, a great deal of attention has been devoted to Symmetry Pro
	tected Topological (SPT) phases of matter\, which are generalizations of to
	pological insulators to interacting systems. In the first part of the talk\
	, we will discuss a route to constructing spin models of bosonic SPT phases
	 that encode a non-trivial entanglement in the many-body ground state. Thes
	e can be formulated as Rokhsar-Kivelson type models\, for which the ground 
	state satisfies a frustration free condition.  \nIn the second part of the 
	talk we put forward a proposal to realize SPT phases in interacting periodi
	cally-driven systems. Our protocol uses a drive in the large frequency regi
	me\, where the time evolution is shown to be governed by a Stroboscopic SPT
	 (SSPT) Hamitonian. We show how to realize a spin-1/2 SSPT phase whose sign
	ature of the localized edge states can be detected via a dynamical probe. F
	inally\, we discuss the rationale behind obtaining SSPT Hamiltonians\, whic
	h may open a door to designing short-range entangled states of matter in a 
	controlled way.
LOCATION:SCI 328\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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