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Universal theory of strange metals from spatially random interactions

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arxiv 2203.04990 v7 pith:ZAZLWW3L submitted 2022-03-09 cond-mat.str-el hep-th

Aavishkar A. Patel , Haoyu Guo , Ilya Esterlis , Subir Sachdev This is my paper · ORCID
classification cond-mat.str-elhep-th
keywords metalscriticalrandomspatiallystrangearisingaveragebehavior
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abstract

We consider two-dimensional metals of fermions coupled to quantum critical scalars, the latter representing order parameters or emergent gauge fields. We show that at low temperatures ($T$), such metals generically exhibit strange metal behavior with a $T$-linear resistivity arising from spatially random fluctuations in the fermion-scalar Yukawa couplings about a non-zero spatial average. We also find a $T\ln (1/T)$ specific heat, and a rationale for the Planckian bound on the transport scattering time. These results are obtained in the large $N$ expansion of an ensemble of critical metals.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Holographic Learning from Fermionic Spectra: Application to Strange Metal Phenomenology

    hep-th 2026-07 conditional novelty 7.0 of 10

    Neural ODEs learn that normalized low-T cuprate PLL spectra are well described by conformal-to-AdS2 black holes with nearly vanishing gauge potential, while thermodynamics remain invisible to the massless probe.

  2. Linear Resistivity from Spatially Random Interactions and the Uniqueness of Yukawa Coupling

    hep-th 2025-07 conditional novelty 6.0 of 10

    Only the two-dimensional spatially random Yukawa coupling, among all (ψ†ψ)^n φ^m scalar couplings, yields linear-in-temperature resistivity in the large-N SYK-rised framework.

  3. Hall Angle of a Spatially Random Vector Model

    hep-th 2025-01 conditional novelty 5.0 of 10

    In a spatially random vector-coupling model with a magnetic field, linear-T resistivity persists while the Hall angle follows normal 1/T behavior rather than the strange-metal T^2 law.

  4. Lectures on insulating and conducting quantum spin liquids

    cond-mat.str-el 2025-12 unverdicted novelty 3.0 of 10

    The notes argue that the FL* state — small pockets plus a quantized spin-liquid anomaly — resolves the ADMR pocket and v_F >> v_Delta problems that defeated holon-metal and plain fermionic-parton theories of the cuprates.

  5. The foot, the fan, and the cuprate phase diagram: Fermi-volume-changing quantum phase transitions

    cond-mat.str-el 2025-01 conditional novelty 3.0 of 10

    The paper attributes the cuprate 'foot' to a disordered spin-density-wave transition and the 'fan' to a disorder-tuned FL-to-FL* Fermi-volume-changing transition described by a two-dimensional Yukawa-SYK model.

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