Previous Webinars: Seminar 53: Roton Metamaterials Speaker: Martin Wegener (Karlsruhe Institute of Technology) Q & A: Abstract: Based on the pioneering work of Lev Landau and Richard Feynman, rotons were observed in inelastic neutron scattering experiments on superfluid helium in 1961. For the roton dispersion relation, energy and momentum of the acoustical wave are proportional to each other … Continue reading Season 1
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