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BEGIN:VEVENT
DTSTAMP:20260813T192327Z
LAST-MODIFIED:20161019T145137Z
DTSTART:20161021T160000Z
DTEND:20161021T170000Z
UID:event1644@bu.edu
URL:http://physics.bu.edu/internal/events/show/1644
SUMMARY:Measuring many-body characters in AMO systems
DESCRIPTION:Featuring Mohammed Hafezi\, UMD\nHosted by: Alexander Sushkov\n
	\nPart of the Biophysics/Condensed Matter Seminar Series.\n\nIn the first p
	art of the talk\, I describe a scheme for measurement of\nentanglement spec
	trum. While there has been a surge of theoretical\nworks on the subject\, n
	o experimental measurement has been performed\nto this date\, due to the la
	ck of an implementable measurement scheme.\nOur scheme effectively performs
	 a Ramsey spectroscopy of the\nentanglement Hamiltonian\, via an auxiliary 
	qubit. In the second part\,\nmotivated by the scrambling of information in 
	many-body systems\, I\ndiscuss a scheme to measure the time dependence of o
	ut-of-time-ordered\n(OTO) correlation functions such as ⟨O2(t)O1(0)O2(t)O
	1(0)⟩.\nExperimentally\, these correlators are challenging to access sinc
	e they\napparently require access to both forward and backward time evoluti
	on\nwith the system Hamiltonian. I discuss how a 'quantum clock' can\nemula
	te the forward and backward time propagation.This capability\nleads to an e
	fficient measurement of OTOs.
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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