Year: 2025
Type: article
Abstract: Recently, Patel et al. Science 381, 790 (2023) introduced a higher-dimensional version of the SYK model with random coupling in a Yukawa interaction to explain the linear-$T$ resistivity. We test the universality of this mechanism by replacing the scalar field with a vector field in various dimensions. We find that it applies to vector and scalar interactions, although the details differ significantly. However, this mechanism for linear-$T$ resistivity works only in $(2+1)$ dimensions and not in higher dimensions, regardless of the interaction type. Based on these results, we explore the role of spatial random disorder and provide a simple explanation of how such random scattering transforms a Fermi liquid into a strange metal by modifying the self-energies of the involved bosons and fermions.
Authors: Yi-Li Wang, Xian-Hui Ge, Sang-Jin Sin
Institutions: Hanyang University, Shanghai University
Language: English
Topic: Quantum many-body systems
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4408405969