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MP: Fachverband Theoretische und Mathematische Grundlagen der Physik
MP 12: Hydrodynamics
MP 12.1: Talk
Thursday, March 21, 2024, 15:00–15:20, HL 001
Bad metal data versus a theory of non-linear diffusion — Matthias Kaminski1, •Navid Abbasi2, and Omid Tavakol3 — 1University of Alabama, Tuscaloosa, USA — 2Lanzhou University, Lanzhou, China — 3University of Toronto, Toronto, Canada
In a system with one conserved charge the charge diffusion is modified by non-linear self-interactions within an effective field theory (EFT) of diffusive fluctuations. We include the slowest ultraviolet (UV) mode, constructing a UV-regulated EFT of non-linear diffusion. Predictions from this theory are in agreement with experimental data in a bad metal system.
Keywords: Hydrodynamics; Self-interactions; Fluctuations; Non-linear diffusion; Bad metals