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SUMMARY:IEM Distinguished Lecturers Seminar: Topological waves: From conde
 nsed matter to geo/astrophysical flows
DTSTART:20220408T131500
DTEND:20220408T140000
DTSTAMP:20260928T184924Z
UID:6b471843de0ab491b533ed22810915690eac89ff661f19e78464e4cf
CATEGORIES:Conferences - Seminars
DESCRIPTION:Pierre Delplace (CNRS\, École Normale Supérieure de Lyon\, L
 aboratory of Physics\, France)\nAbstract : Topology has become essential t
 o apprehend quantum materials. Since the discovery of the quantum Hall eff
 ect\, and later\, of topological insulators and semimetals\, it appeared t
 ha topology provided  the relevant concepts to describe and predict unusu
 al phases of matter. A unifying property of all those various systems is t
 hat of protected boundary modes\, whose robustness is inherited from topol
 ogy. It was later realised that such properties are essentially wave pheno
 mena rather than stricltly quantum\, which opened the door to the concepti
 on of a pletory of metamaterials\, involving classical waves (in mechanics
 \, acoustics\, optics...)  where topological boundary modes can be engine
 ered and manipulated.\n\nActually\, it turns out that those very same idea
 s of topology also apply to natural phenomena over very large scales\, nam
 ely the atmosphere\, the oceans\, and even stars. In this presentation\, I
  would like to introduce these ideas and show how they can be (very easily
 ) used to reinterpret or pretict new fluid waves in the geo/astrophysical 
 realm.\n \nBio: Pierre Delplace is a tenured researcher at CNRS in theore
 tical physics since 2015 and works at the laboratory of physics of the Eco
 le Normale Supérieure in Lyon. He did his PhD (2010) at the University Pa
 ris 11 (Orsay) on graphene and a postdoc at the University of Geneva (2010
 -14) where he worked on topological insulators. Since then\, he works on d
 ifferent aspects of topology in a wide class of systems\, from quantum cir
 cuits to photonics and geophysical waves.\n 
LOCATION:ELA 1 https://plan.epfl.ch/?room==ELA%201 https://epfl.zoom.us/j/
 63975847763
STATUS:CONFIRMED
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