IEM Distinguished Lecturers Seminar: Topological waves: From condensed matter to geo/astrophysical flows

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Event details

Date 08.04.2022
Hour 13:1514:00
Speaker Pierre Delplace (CNRS, École Normale Supérieure de Lyon, Laboratory of Physics, France)
Location Online
Category Conferences - Seminars
Event Language English
Abstract : Topology has become essential to apprehend quantum materials. Since the discovery of the quantum Hall effect, and later, of topological insulators and semimetals, it appeared tha topology provided  the relevant concepts to describe and predict unusual phases of matter. A unifying property of all those various systems is that of protected boundary modes, whose robustness is inherited from topology. It was later realised that such properties are essentially wave phenomena rather than stricltly quantum, which opened the door to the conception of a pletory of metamaterials, involving classical waves (in mechanics, acoustics, optics...)  where topological boundary modes can be engineered and manipulated.

Actually, it turns out that those very same ideas of topology also apply to natural phenomena over very large scales, namely 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.
 
Bio: Pierre Delplace is a tenured researcher at CNRS in theoretical physics since 2015 and works at the laboratory of physics of the Ecole Normale Supérieure in Lyon. He did his PhD (2010) at the University Paris 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 different aspects of topology in a wide class of systems, from quantum circuits to photonics and geophysical waves.
 

Practical information

  • General public
  • Free

Organizer

  • Electrical and Micro Engineering Institute (IEM)

Contact

  • Prof. Romain Fleury/Prof. Elison Matioli

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