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SUMMARY:Experimental reconstruction of the Berry curvature in a Floquet Bl
 och band - Christof Weitenberg (Universitat Hamburg)
DTSTART:20160425T143000Z
DTEND:20160425T160000Z
UID:TALK65711@talks.cam.ac.uk
CONTACT:6270
DESCRIPTION:Topological properties lie at the heart of many fascinating ph
 enomena in solid state systems such as quantum Hall systems or Chern insul
 ators. The topology of the bands can be captured by the distribution of Be
 rry curvature\, which describes the geometry of the eigenstates across the
  Brillouin zone. Employing fermionic ultracold atoms in a hexagonal optica
 l lattice\, we engineer the Berry curvature of the Bloch bands using reson
 ant driving and show a full momentum-resolved measurement of the ensuing B
 erry curvature. Our results pave the way to explore intriguing phases of m
 atter with interactions in topological band structures.
LOCATION:Ryle Seminar (Rutherford 930)
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