Collège De France (général)

Jean-François JoannyMatière molle et biophysiqueCollège de FranceAnnée 2024-2025Conférence - Mark Bowick - Order, Geometry and Defects: Facets of OrderMark BowickDeputy Director, Kavli Institute for Theoretical Physics, University of California Santa BarbaraMark Bowick est invité par l'assemblée du Collège de France sur proposition du professeur Jean-François Joanny, chaire Matière molle et biophysique.RésuméSharp structures can occur as minimizers of very regular problems. This means symmetry can lead us badly astray and the resultant symmetry breaking may lead to highly counter-intuitive structures. I will illustrate in a discrete example and then some continuous examples. The main soft matter example will be the emergence of faceted shapes as the ground states of liquid-crystalline vesicles and the novel ground states of crystalline order on a 2-sphere.Mark BowickMark Bowick was born in New Zealand, obtained his B.Sc.(Hons) from the University of Canterbury (New Zealand) and a Ph.D. in theoretical particle