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DTSTAMP:20260917T081532Z
LAST-MODIFIED:20210322T175236Z
DTSTART:20210323T210000Z
DTEND:20210323T220000Z
UID:event2417@bu.edu
URL:http://physics.bu.edu/internal/events/show/2417
SUMMARY:The Physics of Phase Bullying
DESCRIPTION:Featuring Nikolay Shumovskyi\, Boston University\, Physics Depa
	rtment\n\nPart of the Preliminary Oral Exam.\n\nThe Ising model for a ferro
	magnet and the lattice gas model for a fluid are equivalent in thermodynam
	ics but different in dynamics. The order parameter in the lattice gas is c
	onserved while the order parameter in the Ising ferromagnet is not. As a re
	sult\, two fluid phases with different densities always coexist in equilibr
	ium\, while two magnetic phases with opposite orientations only coexist in 
	a metastable state. The non-conserved nature of the Ising order parameter r
	esults in the phenomenon of ``phase amplification\,'' when one phase grows 
	at the expense of another one. We show that even a small probability for th
	e order parameter to exhibit Ising dynamics breaks the particle conservatio
	n law thus resulting in phase amplification. We characterized this phenomen
	on by the probability of Ising dynamics\, distance to the critical point\, 
	and system size.
LOCATION: \, \, 
STATUS:CONFIRMED
CLASS:PUBLIC
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