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BEGIN:VEVENT
DTSTAMP:20260813T020826Z
LAST-MODIFIED:20121116T203436Z
DTSTART:20080415T193000Z
DTEND:20080415T203000Z
UID:event245@bu.edu
URL:http://physics.bu.edu/internal/events/show/245
SUMMARY:The Evolution from BCS to Bose-Einstein Condensation: Superfluidity
	 in Metals\, Neutron Stars\, Nuclei\, and Ultra-Cold Atoms
DESCRIPTION:Featuring Carlos Sa de Melo\, Georgia Tech and Joint Quantum In
	stitute University of Maryland/NIST\nHosted by: Antonio Castro Neto\nPoster
	: http://physics.bu.edu/internal//posters/2008_Spring/07_Sademelo.pdf\n\nPa
	rt of the Physics Department Colloquia Series.\n\nAbstract: Superfluidity i
	s a very interesting phenomenon that has been found in metals\, neutron sta
	rs\, nuclei and more recently in ultra-cold atoms. For a given  metal\, neu
	tron star\, or nuclei there is essentially "zero" tunability of the particl
	e density or interaction strength\, and thus superfluid properties can not 
	be controlled at the turn of a knob. However\, in ultra-cold Fermi atoms th
	e interaction strength and the particle density can be tuned to change qual
	itatively and quantitatively superfluid properties. This tunability allows 
	for the study of the evolution from BCS (weak coupling) superfluidity of la
	rge Cooper pairs to Bose-Einstein condensation (strong coupling) superfluid
	ity of tightly bound molecules.  I will discuss the BCS to BEC evolution in
	 s-wave and p-wave angular momentum channels\, and will conclude that this 
	evolution is just a crossover phenomenon for s-wave\, while a quantum phase
	 transition takes place for the p-wave case.
LOCATION: \, \, 
STATUS:CONFIRMED
CLASS:PUBLIC
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