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VERSION:2.0
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BEGIN:VEVENT
DTSTAMP:20261026T000936Z
LAST-MODIFIED:20191031T134426Z
DTSTART:20191101T160000Z
DTEND:20191101T173000Z
UID:event2230@bu.edu
URL:http://physics.bu.edu/internal/events/show/2230
SUMMARY:Long-lived interacting phases of matter protected by multiple time-
	translation symmetries in quasiperiodically driven systems
DESCRIPTION:Featuring Dominic Else\, Massachusetts Institute of Technology\
	nHosted by: Philip Crowley\n\nPart of the Biophysics/Condensed Matter Semin
	ar Series.\n\nThe discrete time-translation symmetry of a periodically-driv
	en (Floquet) system allows for the existence of novel\, nonequilibrium inte
	racting phases of matter. A well-known example is the discrete time crystal
	\, a phase characterized by the spontaneous breaking of this time-translati
	on symmetry. In this talk\, I will show that the presence of *multiple* tim
	e-translational symmetries\, realized by quasiperiodically driving a system
	 with two or more incommensurate frequencies\,  leads to a panoply of novel
	 non-equilibrium phases of matter\, both spontaneous symmetry breaking ("di
	screte time quasi-crystals") and topological.\nIn order to stabilize such p
	hases\, I will outline rigorous mathematical results establishing slow heat
	ing of systems driven quasiperiodically at high frequencies. As a byproduct
	\, I will introduce the notion of many-body localization (MBL) in quasiperi
	odically driven systems.
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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