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DTSTAMP:20260912T132352Z
LAST-MODIFIED:20140527T131556Z
DTSTART:20140528T150000Z
DTEND:20140528T160000Z
UID:event1289@bu.edu
URL:http://physics.bu.edu/internal/events/show/1289
SUMMARY:Generalized Gibbs ensemble (GGE) and applications for integrable  s
	ystems
DESCRIPTION:Featuring Dr. Garry Goldstein\, Rutgers University\nHosted by: 
	Claudio Chamon\n\nPart of the Condensed Matter Theory Seminar Series.\n\nAb
	stract:\nWe study the nonequilibrium properties of 1-D interacting systems.
	 For \nthe 1-D Lieb Liniger gas we introduce a new version of the Yudson \n
	representation applicable to finite size systems. We provide a formalism \n
	to compute various correlation functions for highly nonequilibrium \ninitia
	l states. In the strong coupling regime we are able to find \nexplicit expr
	essions for the density\, density-density and related \ncorrelation functio
	ns. We are able to show that for initial sates with \nsmooth correlations t
	he gas equilibrates at long times.  For nearly \ntranslationaly invariant s
	tates the gas equilibrates to the GGE. We show \nthat for other integrable 
	models\, ones with bound states\, the GGE fails. \nWe also apply our result
	s on equilibration and the GGE to studying \ninitial states with small Yang
	-Yang entropies in the Tonks Girardeau \nregime. We show that at long time 
	such states have universal power law \ndensity-density correlations.
LOCATION:SCI 328\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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