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SUMMARY:A Mott insulator of fermionic atoms in an optical lattice - Dr Hen
 ning Moritz (ETH Zurich)
DTSTART:20080818T143000Z
DTEND:20080818T160000Z
UID:TALK13119@talks.cam.ac.uk
CONTACT:6270
DESCRIPTION:In a solid material strong interactions between the electrons 
 can lead to surprising properties. A prime example is the Mott insulator\,
  where the suppression of conductivity is a result of interactions and not
  the consequence of a filled Bloch band. The proximity to the Mott insulat
 ing phase in fermionic systems is the origin for many intriguing phenomena
  in condensed matter physics\, most notably high-temperature  superconduct
 ivity.\n Fermionic quantum gases trapped in an optical lattice offer a ver
 y pure realisation of the Hubbard model\, giving a new approach to underst
 and the  physics of strongly correlated systems.\n\nAfter introducing ferm
 ionic atoms in optical lattices and outlining how they can be used to acce
 ss the strongly interacting regime\, I will focus on recent experiments in
  our group. In particular\, I will report on the formation of a Mott insul
 or of repulsively interacting two-component Fermi gas\, which we have rece
 ntly observed.\n\n
LOCATION:HEP Seminar Room (980) Rutherford Building\, Cavendish Laboratory
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