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VERSION:2.0
PRODID:-//RLASKEY//CALENDEROUS//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20261030T110033Z
LAST-MODIFIED:20170424T172529Z
DTSTART:20170428T160000Z
DTEND:20170428T170000Z
UID:event1744@bu.edu
URL:http://physics.bu.edu/internal/events/show/1744
SUMMARY:Many body localization\, thermalization\, and the localization tran
	sition: insights from the entanglement spectrum
DESCRIPTION:Featuring Rahul Nandkishore\n\nPart of the Biophysics/Condensed
	 Matter Seminar Series.\n\nI discuss universal structure in the pattern of 
	entanglement of many body localized (MBL) and thermalizing phases. There is
	 far more universal structure than is captured by the entanglement entropy 
	- and some if it can be extracted from the entanglement spectrum using diag
	nostics inspired by random matrix theory. Examining the thermalizing phase 
	through this lens\, we discover new universal structure consistent with but
	 going beyond that predicted by eigenstate thermalization (ETH). In the MBL
	 phase\, we discover universal structure in the high energy part of the ent
	anglement spectrum indicative of a residual `memory of criticality\,’ whi
	ch persists in the wave functions arbitrarily deep into the localized phase
	. Armed with this insight\, we attack the many body localization transition
	 by working deep within the localized phase\, where finite size effects are
	 well under control. A consideration of appropriate diagnostics based on th
	e entanglement spectrum allows us to identify the MBL-quantum critical cros
	sover for the first time in exact numerics. This allows us to place an uppe
	r bound on the critical disorder strength for localization\, to complement 
	the lower bounds that have previously been obtained.
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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