The NKSOS discrete model exactly matches multichannel Kondo and is efficiently Monte-Carlo simulated without critical slowing down, unifying weak- and strong-coupling crossovers and transport.
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Mode-dependent ferromagnetic Kondo coupling yields singlet ground states and heavy Fermi liquids as a magnetic-channel analog to Anderson-Morel superconductivity.
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.
Nonadiabatic renormalization group produces nested fiber bundle structures and shared-leg tensor networks for strongly coupled multiscale quantum systems, shown on interacting boson models and ab initio quantum chemistry.
A Keldysh-space extension of the Kajueter-Kotliar iterated perturbation theory is introduced and validated against AMEA for biased Anderson impurity transport away from half filling in the regime where AMEA is reliable.
Neural networks trained with 10-100x fewer examples than prior work approximate CT-QMC impurity solvers in DMFT, delivering comparable accuracy on interpolation and accelerating simulations up to 5x when used as initial guesses for lower temperatures.
DFT+DMFT with a multi-orbital iterative perturbation theory solver shows that low-energy spectra and transport of SrVO3 are governed by a single quasiparticle weight Z, yielding reasonable experimental agreement insensitive to specific (U,J) parameters.
citing papers explorer
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Monte-Carlo solution of the Kondo model
The NKSOS discrete model exactly matches multichannel Kondo and is efficiently Monte-Carlo simulated without critical slowing down, unifying weak- and strong-coupling crossovers and transport.
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Kondo singlet from ferromagnetic coupling: an analog of Anderson-Morel superconductivity in the magnetic channel
Mode-dependent ferromagnetic Kondo coupling yields singlet ground states and heavy Fermi liquids as a magnetic-channel analog to Anderson-Morel superconductivity.
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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.
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Nonadiabatic Renormalization Group for Strongly Coupled Multiscale Quantum Systems
Nonadiabatic renormalization group produces nested fiber bundle structures and shared-leg tensor networks for strongly coupled multiscale quantum systems, shown on interacting boson models and ab initio quantum chemistry.
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Extension of the iterated perturbation theory at arbitrary fillings to nonequilibrium steady states
A Keldysh-space extension of the Kajueter-Kotliar iterated perturbation theory is introduced and validated against AMEA for biased Anderson impurity transport away from half filling in the regime where AMEA is reliable.
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Neural networks as low-cost surrogates for impurity solvers in quantum embedding methods
Neural networks trained with 10-100x fewer examples than prior work approximate CT-QMC impurity solvers in DMFT, delivering comparable accuracy on interpolation and accelerating simulations up to 5x when used as initial guesses for lower temperatures.
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Quantitative DFT+DMFT description of spectra and transport in the moderately correlated metal SrVO$_3$
DFT+DMFT with a multi-orbital iterative perturbation theory solver shows that low-energy spectra and transport of SrVO3 are governed by a single quasiparticle weight Z, yielding reasonable experimental agreement insensitive to specific (U,J) parameters.