BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Quasicrystals\, Charge Ordering and the Quantum Hall Effect - Feli
 x Flicker\, University of Bristol
DTSTART:20150213T130000Z
DTEND:20150213T140000Z
UID:TALK57236@talks.cam.ac.uk
CONTACT:Lucy Colwell
DESCRIPTION:Recent experimental observations have been argued to demonstra
 te the\nequivalence of one-dimensional quasicrystals to two-dimensional qu
 antum\nHall systems. If correct this would lend strong evidence to the cla
 im\nthat three-dimensional quasicrystals such as certain Ho-Mg-Zn alloys\n
 are\, in a very real sense\, higher dimensional objects living in our\nwor
 ld. The interpretation is controversial\, but the objections\nmathematical
 ly subtle\, based on the topological classification of free\nfermion syste
 ms. In recent work we showed that the mathematics of both quasicrystals an
 d the quantum Hall effect can be considered as different limits of a third
  problem: incommensurate charge order. We use the equivalence\, and a coup
 le of properties of fractal patterns\, to resolve the debate by means of a
  simple analogy.
LOCATION:Unilever Lecture Theatre\, Department of Chemistry
END:VEVENT
END:VCALENDAR