Detta är en del av seminarieserien för studenter och forskare som är intresserade av teoretisk fysik och tillämpad matematik. Lars Fritz (Universiteit Utrecht) håller i ett seminarium med titeln "Collective Modes and Hydrodynamic Transport in metals Beyond Weak Interactions: Insights from Graphene".
Lars Fritz (Universiteit Utrecht)
In the conventional weakly interacting picture of metals, transport is governed by quasiparticles and scattering, while collective quantum modes are typically neglected. In very clean conductors such as graphene, however, strong electron–electron interactions bring these modes to the forefront. They carry heat, strongly affect transport, and underpin striking deviations from textbook expectations such as the violation of the Wiedemann–Franz law. In this talk I will present a hydrodynamic framework that consistently incorporates collective modes while respecting the underlying conservation laws. This approach provides a unified and tractable way to calculate transport coefficients, and reveals why interactions are not a minor correction but a central player in the physics of clean quantum materials.
Det går både att delta i seminariet på plats eller via Zoom.
Plats: PJ-salen, Institutionen för fysik, Kemigården 1, Göteborg
Zoom-länk: https://gu-se.zoom.us/j/64681043702