Abstract
We address Coulomb drag and near-field heat transfer in a double-layer system of incoherent metals. Each layer is modeled by an array of tunnel-coupled SYK dots with random interlayer interactions. Depending on the strength of intradot interactions and interdot tunneling, this model captures the crossover from the Fermi liquid to a strange metal phase. The absence of quasiparticles in the strange metal leads to temperature-independent drag resistivity, which is in strong contrast with the quadratic temperature dependence in the Fermi liquid regime. We show that all the parameters can be independently measured in near-field heat transfer experiments, performed in Fermi liquid and strange metal regimes.
Original language | English (US) |
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Article number | 096501 |
Journal | Physical review letters |
Volume | 131 |
Issue number | 9 |
DOIs | |
State | Published - Sep 1 2023 |
Bibliographical note
Publisher Copyright:© 2023 American Physical Society.
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- Journal Article