Speaker
Ulf Gran
(Chalmers)
Description
Plasmons are ubiquitous in all conducting compounds. We
show how to model plasmons holographically, relevant for
systems without quasiparticles, e.g. the ‘strange metal’
phase of high temperature superconductors. By introducing
holographic electromagnetism we derive a novel set of of
boundary conditions which the plasmon modes, and in fact all
physical modes, must satisfy. We present the results for
both bulk and 2DEG plasmons, and highlight that holographic
bulk plasmons exhibit an exotic dispersion in a part of the
parameter space not accessible by other methods.
