Surface fRG extension shows d-wave superconductivity from the 2D Hubbard model persists across most interlayer couplings but splits into two regimes separated by a narrow region of incommensurate spin-density-wave and spin-bond order at intermediate couplings.
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An interaction-flow fRG framework regulates both propagators and bare interactions via single-boson exchange, allowing temperature flows for retarded-interaction models and tested on Anderson impurity and electron-phonon systems.
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Surface Functional Renormalization Group for Layered Quantum Materials
Surface fRG extension shows d-wave superconductivity from the 2D Hubbard model persists across most interlayer couplings but splits into two regimes separated by a narrow region of incommensurate spin-density-wave and spin-bond order at intermediate couplings.
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Functional renormalization with interaction flows: A single-boson exchange perspective and application to electron-phonon systems
An interaction-flow fRG framework regulates both propagators and bare interactions via single-boson exchange, allowing temperature flows for retarded-interaction models and tested on Anderson impurity and electron-phonon systems.