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SUMMARY:Dislocation model for a particular perturbed periodic structure wi
 th honeycomb symmetry - Berangere Delourme (Université Sorbonne Paris Nor
 d)
DTSTART:20230206T141500Z
DTEND:20230206T150000Z
UID:TALK194737@talks.cam.ac.uk
DESCRIPTION:\n\n\nIn this talk\, we investigate the propagation of waves i
 n a particular honeycomb structure made of thin tubes. Because of the peri
 odicity of the domain\, the &nbsp\;essential spectrum of the underlying op
 erator has gaps\, i.e. intervalls of frequencies wherein the monochromatic
  plane waves do not propagate. &nbsp\;Tuncating the structure along the&nb
 sp\;&nbsp\;zig-zag direction leads to the apparition of &nbsp\;guided wave
 s propagating along the defect. Making varying the location of the truncat
 ion permits to generate spectral flow in the gaps of the associated operat
 or. &nbsp\;\n\n\n
LOCATION:Seminar Room 1\, Newton Institute
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