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BEGIN:VEVENT
DTSTAMP:20260907T054348Z
LAST-MODIFIED:20121116T203436Z
DTSTART:20080131T183000Z
DTEND:20080131T193000Z
UID:event218@bu.edu
URL:http://physics.bu.edu/internal/events/show/218
SUMMARY:"BCS and beyond: new insights into fermionic superfluids from ultra
	cold gases"
DESCRIPTION:Featuring Wilhelm Zwerger\, Technical University of Munich\n\nP
	art of the Condensed Matter Theory Seminar Series.\n\nAbstract:  Ultracold 
	Fermi gases near a Feshbach resonance allow one to realize a crossover from
	 a BCS-type superfluid to a Bose-Einstein-Condensate of strongly bound pair
	s. I will discuss the thermodynamics of this crossover\, emphasizing the un
	iversal behavior at infinite scattering length. A microscopic signature of 
	pairing is provided by radiofrequency-spectroscopy. The average clock-shift
	 is a measure of the pair-interaction energy which\, however\, hardly chang
	es between the superfluid and a normal state reached beyond a critical spin
	-imbalance. Understanding the phase diagram and excitation spectrum of imba
	lanced gases still provides a challenge for both theory and experiment.
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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