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SUMMARY:A Glance at the Exotic Quantum Liquids and Solids of the Two-Dimen
 sional Electron Gas - Associate Professor Gábor A. Csáthy\, Purdue Unive
 rsity\, USA
DTSTART:20141105T141500Z
DTEND:20141105T151500Z
UID:TALK55841@talks.cam.ac.uk
CONTACT:Teri Bartlett
DESCRIPTION:The two-dimensional electron gas is a fascinating model system
  with an astonishingly large number of ground states. The study of this sy
 stem has enriched quantum many-body physics with novel concepts such as co
 mposite fermions\, topological invariants\, and quasiparticles with fracti
 onal charge. The description of a small number of recently observed fracti
 onal quantum Hall states\, however\, may require an even more sophisticate
 d set of concepts such as Pfaffian electronic correlations and non-Abelian
  statistics.\n\nCooling of the electrons to ultra-low temperatures has led
  to the discovery of new fractional states and the chance to study others 
 in the new regime of very low densities. In this talk I will discuss how t
 hese results have shaped our understanding of both the even- and odd-denom
 inator fractional quantum Hall states developing in the area of phase spac
 e called the second Landau level. I will also highlight new results on the
  exotic electronic solids forming in this region.\n\n\n
LOCATION:Mott Seminar Room\, Cavendish Laboratory\, Department of Physics
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