Thermal conductivity measurements in underdoped Hg1201 yield an anomalously large nodal velocity ratio, suggesting additional Fermi surface sheets beyond the known electron pocket.
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Numerical simulation of the 2D Hubbard model at U=7t, t'=-0.3t finds a critical doping p* where Fermi-liquid scales collapse continuously, marking a quantum phase transition to a pseudogap metal with Fermi arcs.
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Anomalously high quasiparticle thermal conductivity in the underdoped cuprate superconductor HgBa$_{2}$CuO$_{4+\delta}$
Thermal conductivity measurements in underdoped Hg1201 yield an anomalously large nodal velocity ratio, suggesting additional Fermi surface sheets beyond the known electron pocket.
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Quantum criticality in the two-dimensional Hubbard model
Numerical simulation of the 2D Hubbard model at U=7t, t'=-0.3t finds a critical doping p* where Fermi-liquid scales collapse continuously, marking a quantum phase transition to a pseudogap metal with Fermi arcs.