“ Pseudo-magnetism and Landau Levels in Deformed Honeycomb Structures”

TYPESolid State Institute Seminar
Speaker:Professor Michael I Weinstein
Affiliation:Department of Mathematics Columbia University U.S.A
Time:12:30 - 13:30
Location:Solid State Auditorium(Entrance)
Remark:Host: Distinguished Professor Moti segev



A non-uniform deformation of a honeycomb medium induces effective-magnetic and effective electric fields. One may choose a deformation which gives rise to a constant perpendicular effective magnetic field with Landau-level spectrum (flat bands). In the setting of photonic crystals, the tight binding (discrete) model is generally not applicable. I will present a continuum theory, backed by some mathematically rigorous and formal asymptotic results (joint work with J. Guglielmon and M. Rechtsman - Phys. Rev. A 103 2021), and then review very recent experimental confirmation of this theory (Barsukova et al. Nature Photonics 2024, to appear).


From: Moti Segev <This email address is being protected from spambots. You need JavaScript enabled to view it.>
Sent: Tuesday, 21 May 2024 8:22
To: Ariela Sharon <This email address is being protected from spambots. You need JavaScript enabled to view it.>
Subject: seminar tomorrow


Dear All, 


Please see the attached announcement. Michael Weinstein is well-known researcher, Professor at Columbia University, who has made numerous breakthroughs in nonlinear dynamics and nonlinear optics. One of them was the discovery of the self-similar dynamics of catastrophic collapse of optical waves in nonlinear media, and many more. 

He will be talking about artificial magnetism created by deforming honeycomb lattices (such as graphene). This research direction was started in my group by my former postdocs Mik Rectsman and Alex Szameit (Nature Photonics 2013). The seminar is about new and unexpected ideas. 


Hope you can all come. 


If any of you want to meet with him, please let me know.