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DTSTAMP:20261019T140301Z
LAST-MODIFIED:20140505T205827Z
DTSTART:20140507T180000Z
DTEND:20140507T190000Z
UID:event1283@bu.edu
URL:http://physics.bu.edu/internal/events/show/1283
SUMMARY:1D Valence Bond Solids in a Magnetic Field
DESCRIPTION:Featuring Adam Iaizzi\n\nPart of the Preliminary Oral Exam.\n\n
	Examining Committee:  Anders Sandvik\, Claudio Chamon\, James Miller\, Shya
	msunder Erramilli\n\nAbstract:\n\nValence bond solids (VBS) are a kind of l
	ong-range nonmagnetic order that can appear in certain quantum spin systems
	. This order breaks a discrete symmetry\, so it is allowed to occur in one 
	dimension. Recent innovations in models and simulation techniques have enab
	led large-scale numerical studies of the quantum phase transition from a po
	wer-law quasi-Neel-ordered state to the VBS-ordered state. These studies ha
	ve found evidence for the fractionalization of triplons into deconfined or 
	nearly-deconfined spinons at the phase boundary. We propose studying the de
	struction of the VBS order by a magnetic field. I am currently developing s
	tochastic series expansion quantum monte carlo simulations for this study. 
	As a parallel project\, we will be investigating the VBS under hole doping\
	n\n![Adam Iaizzi](/resources/event-image/1283/68b0d7b_small)
LOCATION:SCI 328\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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