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TZID:Europe/Paris
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BEGIN:VEVENT
UID:0-695@lptms.universite-paris-saclay.fr
DTSTART:20191112T110000Z
DTEND:20191112T120000Z
DTSTAMP:20191022T203956Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-du-lptm
 s-erdal-oguz-tel-aviv-university/
SUMMARY:Séminaire du LPTMS: Erdal Oguz (Tel Aviv University) - Salle des s
 éminaires du FAST et du LPTMS\, bâtiment Pascal n°530 - 12 Nov 19 11:00
DESCRIPTION:Hyperuniformity of quasicrystals and related structures\nErdal 
 Oguz (Tel Aviv University)\nDensity fluctuations in many-body systems are 
 of fundamental importance throughout various scientific disciplines. Hyper
 uniform systems\, which include crystals and quasicrystals\, have density 
 fluctuations that are anomalously suppressed at long wavelengths compared 
 to the fluctuations in typical disordered point distributions such as in i
 deal gases and liquids.\nIn this talk\, I will provide the first rigorous 
 hyperuniformity analysis of quasicrystals and related points sets\, and it
 s consequences. Most importantly\, we reveal that one-dimensional quasicry
 stals obtained by the cut-and-project method fall into two distinct classe
 s with respect to their large-scale density fluctuations. This distinction
  provides a new classification scheme of quasicrystalline systems. Further
 more\, our results suggest that these two classes exhibit distinct physica
 l properties\; for instance\, by employing a tight-binding model\, we disc
 over that wave localization in each class displays a qualitatively differe
 nt behavior.  \n\n\n\n
CATEGORIES:seminars
LOCATION:Salle des séminaires du FAST et du LPTMS\, bâtiment Pascal n°53
 0\, rue André Riviere\, Orsay\, 91405\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=rue André Riviere\, Orsay\
 , 91405\, France;X-APPLE-RADIUS=100;X-TITLE=Salle des séminaires du FAST 
 et du LPTMS\, bâtiment Pascal n°530:geo:0,0
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