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UID:0-746@lptms.universite-paris-saclay.fr
DTSTART;TZID=Europe/Paris:20200929T110000
DTEND;TZID=Europe/Paris:20200929T120000
DTSTAMP:20200922T053935Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-du-lptm
 s-ilya-galanov/
SUMMARY:Séminaire du LPTMS : Ilya Galanov - Grand amphi\, bâtiment Pascal
  n° 530 - 29 Sep 20 11:00
DESCRIPTION:On Self-Assembly of Aperiodic Tilings\nIlya Galanov (Laboratoir
 e d’Informatique de Paris Nord - Université Paris 13)\n\nSeminar taking
  place at Batiment Pascal with ZOOM streaming.\n\nZOOM Meeting ID: 973 982
 7 8038\nPassword: 742352\n\nSelf-assembly is the process in which the comp
 onents of a system\, whether molecules\, polymers\, or macroscopic particl
 es\, are organized into ordered structures as a result of local interactio
 ns between the components themselves\, without exterior guidance. This tal
 k is devoted to the self-assembly of aperiodic tilings. Aperiodic tilings 
 serve as a mathematical model for quasicrystals - crystals that do not hav
 e any translational symmetry. Because of the specific atomic arrangement o
 f these crystals\, the question of how they grow still remains open. Our a
 im is to develop a growth algorithm for a particular class of aperiodic ti
 lings - octagonal tilings of finite type. In order to mimic the growth of 
 real-world quasicrystals\, we demand the algorithm be local: the tiles mus
 t be added one by one\, using only the local information\, and no data mus
 t be stored between the steps. Simulations strongly support the evidence t
 hat this algorithm grows aperiodic tilings\, up to an unavoidable but negl
 ectable proportion of missing tiles.
CATEGORIES:seminars
LOCATION:Grand amphi\, bâtiment Pascal n° 530\, rue André Rivière\, Ors
 ay\, 91405\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=rue André Rivière\, Orsay
 \, 91405\, France;X-APPLE-RADIUS=100;X-TITLE=Grand amphi\, bâtiment Pasca
 l n° 530:geo:0,0
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