Strange metal from local quantum chaos
Daniel Ben-Zion, John McGreevy
TL;DR
This paper proposes a model for non-Fermi-liquid metals exhibiting efficient current dissipation, using SYK models in a Kondo lattice framework, inspired by holographic duality, and finds evidence for a stable phase at intermediate couplings.
Contribution
It introduces a novel Kondo lattice model with SYK fermions to study local quantum chaos and non-Fermi-liquid behavior.
Findings
Evidence for a stable phase at intermediate couplings
Demonstrates local quantum chaos leads to non-Fermi-liquid properties
Connects holographic duality insights with condensed matter models
Abstract
How to make a model of a non-Fermi-liquid metal with efficient current dissipation is a long-standing problem. Results from holographic duality suggest a framework where local critical fermionic degrees of freedom provide both a source of decoherence for the Landau quasiparticle, and a sink for its momentum. This leads us to study a Kondo lattice type model with SYK models in place of the spin impurities. We find evidence for a stable phase at intermediate couplings.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.