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BEGIN:VEVENT
DTSTAMP:20261019T095214Z
LAST-MODIFIED:20140528T143123Z
DTSTART:20140618T140000Z
DTEND:20140618T150000Z
UID:event1292@bu.edu
URL:http://physics.bu.edu/internal/events/show/1292
SUMMARY:Universal High-Frequency Limits of Periodically Driven Systems: fro
	m Classical Dynamical Stabilization to Quantum  Floquet Engineering
DESCRIPTION:Featuring Marin Bukov\n\nPart of the Preliminary Oral Exam.\n\n
	Examining Committee:  Anatoli Polkovnikov\,Claudio Chamon\, Ami Katz\, Shya
	m Erramilli\n\nAbstract:\n\nPeriodically driven systems are currently exper
	iencing an unprecedented flurry of interest. Proposed theoretically\, and s
	uccessfully verified experimentally\, nonequilibrium models have been inven
	ted in which\, by means of an ultra-fast periodic drive\, the properties of
	 a system can be changed drastically. For instance\, periodic driving is fo
	und to turn unstable equilibria into stable ones; neutral atoms can be re-d
	esigned to 'feel' magnetic fields much stronger than what current magnets c
	an produce today; topologically-trivial systems are cast into topological i
	nsulators which exhibit robust edge states suitable for quantum computing.\
	n\nStarting from Floquet theory\, I will discuss the underlying theoretical
	 ideas behind some of these models\, giving a classification of different d
	riving scenarios that can be employed to achieve optimal engineering result
	s. I will then present a universal method to obtain the effective high-freq
	uency Hamiltonian\, illustrated on several examples. Finally\, I will elabo
	rate on different possibilities of performing measurements in these systems
	\, and introduce the concept of 'Floquet measurements'\, which are not only
	 of high experimental interest\, but have the potential to reveal the physi
	cs of the high-frequency effective Hamiltonian as well.\n\n![Marin Bukov](/
	resources/event-image/1292/f6f2373_small)\n![Marin Bukov](/resources/event-
	image/1292/1b2cd49_small)
LOCATION:SCI 328\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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