Electron Transport and Collective Modes in Fermi and non-Fermi Liquids
Licentiatavhandling, 2024
If the coupling becomes strong enough, it invalidates the quasiparticle picture, which undermines many established methods within many-body physics. This happens in the strange metal phase of high-temperature superconductors, where the holographic duality – providing a description of a strongly coupled theory in terms of a weakly coupled gravitational theory – serves as one of the few ways to study the strongly coupled physics.
Recent experiments on strange metals show an incoherent plasmon at small momenta, in qualitative agreement with previous holographic models of bulk plasmons. However, the relevant experiments also couple to collective surface excitations, which hitherto has not been considered. This thesis also presents a model for surface plasmon polaritons using the holographic duality, improving the theoretical description of plasmons in strongly correlated materials.
Författare
Eric Nilsson
Chalmers, Fysik, Subatomär, högenergi- och plasmafysik
Gran, U., Nilsson, E., Hofmann, J. Shear viscosity in interacting two-dimensional Fermi liquids
Nilsson, E., Gran, U., Hofmann, J. Nonequilibrium relaxation and odd-even effect in finite-temperature electron gases
Nilsson, E., Gran, U. Holographic surface plasmon polaritons
Styrkeområden
Nanovetenskap och nanoteknik
Fundament
Grundläggande vetenskaper
Ämneskategorier
Den kondenserade materiens fysik
Utgivare
Chalmers
PJ, Origo
Opponent: Mats Granath, Institutionen för fysik, Göteborgs Universitet, Sverige