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BEGIN:VEVENT
DTSTAMP:20261020T233851Z
LAST-MODIFIED:20151116T135243Z
DTSTART:20151124T144500Z
DTEND:20151124T154500Z
UID:event1505@bu.edu
URL:http://physics.bu.edu/internal/events/show/1505
SUMMARY:Prethermal Floquet Steady States and Instabilities in the Periodica
	lly Driven\, Weakly Interacting Bose-Hubbard Model
DESCRIPTION:Featuring Marin Bukov\n\nPart of the Departmental Seminars.\n\n
	Dissertation Committee:  Anatoli Polkovnikov\, Emanuel Katz\, Claudio Chamo
	n\, Shyam Erramilli\, Pankaj Mehta\n\nAbstract:\n\n\nWe explore prethermal 
	Floquet steady states and instabilities of the weakly\ninteracting two-dime
	nsional Bose-Hubbard model subject to periodic driving. We\ndevelop a descr
	iption of the nonequilibrium dynamics\, at arbitrary drive\nstrength and fr
	equency\, using a weak-coupling conserving approximation. We\nestablish the
	 regimes in which conventional (zero-momentum) and unconventional\n[ -momen
	tum] condensates are stable on intermediate time scales. We\nfind that cond
	ensate stability is enhanced by increasing the drive\nstrength\, because th
	is decreases the bandwidth of quasiparticle excitations and\nthus impedes r
	esonant absorption and heating. Our results are directly relevant\nto a num
	ber of current experiments with ultracold bosons.\n\n![Marin](/resources/ev
	ent-image/1505/1ed8cff_original)
LOCATION:SCI 328\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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