First observation of pressure-driven 2D-to-3D superconducting crossover in Bi2212, with BKT-like 2D transition indicating 2D character of the strange metal state.
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Harris disorder localizes bosonic modes in quantum-critical metals, inducing compact superconducting puddles at high T and extended pairing with power-law distributed scales at low T, unlike stretched-exponential tails in disordered BCS superconductors.
A minimal model of electrons coupled to quantum critical bosons through disordered Yukawa interactions and pinned density waves derives T-linear and B-linear transport scalings that match strange metal experiments.
Reviews the FL* theory for cuprates using ancilla layer models and SU(2) gauge theories to explain pseudogap hole pockets of area p/8, Fermi arcs, and transitions to d-wave superconductivity and Fermi liquid behavior.
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Crossover from two-dimensional to three-dimensional superconducting states in bismuth-based cuprate superconductor
First observation of pressure-driven 2D-to-3D superconducting crossover in Bi2212, with BKT-like 2D transition indicating 2D character of the strange metal state.
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Influence of Harris disorder on quantum-critical superconductivity
Harris disorder localizes bosonic modes in quantum-critical metals, inducing compact superconducting puddles at high T and extended pairing with power-law distributed scales at low T, unlike stretched-exponential tails in disordered BCS superconductors.
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Theory of Linear Magnetoresistance in a Strange Metal
A minimal model of electrons coupled to quantum critical bosons through disordered Yukawa interactions and pinned density waves derives T-linear and B-linear transport scalings that match strange metal experiments.
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Fractionalized Fermi liquids and the cuprate phase diagram
Reviews the FL* theory for cuprates using ancilla layer models and SU(2) gauge theories to explain pseudogap hole pockets of area p/8, Fermi arcs, and transitions to d-wave superconductivity and Fermi liquid behavior.