Download PDFOpen PDF in browserIdentification of Universal Features in the Conductivity of Classes of Two-Dimensional QFTs Using the AdS/CFT CorrespondenceEasyChair Preprint 1148811 pages•Date: December 8, 2023AbstractWe study the electrical conductivity of strongly disordered, strongly coupled quantum field theories, holographically dual to nonperturbatively disordered uncharged black holes. The computation reduces to solving a diffusive hydrostatic equation for an emergent horizon fluid. We demonstrate that a large class of theories in two spatial dimensions have a universal conductivity independent of disorder strength, and rigorously rule out disorder-driven conductorinsulator transitions in many theories. We present a (fine-tuned) axiondilaton bulk theory which realizes the conductor-insulator transition, interpreted as a classical percolation transition in the horizon fluid. We address aspects of strongly disordered holography that can and cannot be addressed via mean-field modeling, such as massive gravity. Keyphrases: High Energy Physics, condensed matter, theory
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