BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//RLASKEY//CALENDEROUS//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20260912T090632Z
LAST-MODIFIED:20121116T203436Z
DTSTART:20080320T173000Z
DTEND:20080320T183000Z
UID:event266@bu.edu
URL:http://physics.bu.edu/internal/events/show/266
SUMMARY:Magnetic monopolies in spin ice
DESCRIPTION:Featuring Claudio Castelnovo\, Univeristy of Oxford\, UK\n\nPar
	t of the Condensed Matter Theory Seminar Series.\n\nElectrically charged pa
	rticles\, such as the electron\, are ubiquitous. By contrast\, no elementar
	y particles with a net magnetic charge have ever been observed\, despite in
	tensive and prolonged searches. We pursue an alternative strategy\, namely 
	that of realizing them not as elementary but rather as emergent particles\,
	 i.e.\, as manifestations of the correlations present in a strongly interac
	ting many-body system. Here we show that magnetic monopoles do emerge in a 
	class of exotic magnets known collectively as spin ice: the dipole moment o
	f the underlying electronic degrees of freedom fractionalises into monopole
	s in a process that we term Dirac string condensation.
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
END:VCALENDAR