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PRODID:-//University of Illinois//Web Services Calendar//EN
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BEGIN:VEVENT
DTSTAMP:20120214T134530Z
DTSTART;TZID=America/Chicago:20091104T120000
DTEND;TZID=America/Chicago:20091104T120000
SUMMARY:QIAMO Seminar:  "A Disturbing Understanding of Cooper Pairs"
CREATED:20091030T120000Z
DESCRIPTION:I will show that unlike common belief\, the superconductor ga
 p is not of the order of the Cooper pair binding energy but far larger. 
  Difference comes from many-body effects induced by Pauli blocking betwe
 en broken and unbroken pairs. This Pauli blocking\, which makes the Coop
 er pair binding energy LINEARLY DECREASE with pair number from the dilut
 e to the dense regime\, in fact rules the whole many-body physics of the
 se composite bosons: Due to the very peculiar form of the BCS potential\
 , Cooper pairs feel each other through the Pauli exclusion principle onl
 y. This is why\, unlike excitons\, they can stay bound even with strong 
 overlap.
LAST-MODIFIED:20100121T130000Z
LOCATION:280 Materials Research Lab.\, 104 S. Goodwin Ave.\, Urbana
CATEGORIES:QI/AMO Seminar
CONTACT:Linda Thorman 217-333-1590
ORGANIZER:thorman@illinois.edu
URL:http://illinois.edu/calendar/detail/1968?key=2000010120000101147019
UID:147019@illinois.edu
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