Obstructed Cooper pairs in the strong-coupling limit on line-graph lattices have identically vanishing leading-order kinetic energy due to frustration, yielding flat bosonic bands, zero superfluid stiffness, and an exact d-wave RVB spin liquid ground state at quarter filling via mapping to the Rokhs
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A momentum-projected variational wavefunction with low-rank electron-phonon factorization yields a scalable, translationally invariant method for computing polaron binding energies and band structures in the thermodynamic limit.
Spatial inhomogeneity in electron-phonon coupling at interfaces renormalizes electronic and phonon spectra, redistributing the Eliashberg function to enhance effective coupling in metallic nanohybrids.
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Obstructed Cooper pairs in flat band systems - weakly-coherent superfluids and exact spin liquids
Obstructed Cooper pairs in the strong-coupling limit on line-graph lattices have identically vanishing leading-order kinetic energy due to frustration, yielding flat bosonic bands, zero superfluid stiffness, and an exact d-wave RVB spin liquid ground state at quarter filling via mapping to the Rokhs
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A Scalable Translationally Invariant Variational Theory of Ab Initio Polarons
A momentum-projected variational wavefunction with low-rank electron-phonon factorization yields a scalable, translationally invariant method for computing polaron binding energies and band structures in the thermodynamic limit.
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Electron and phonon spectrum in a metallic nanohybrid
Spatial inhomogeneity in electron-phonon coupling at interfaces renormalizes electronic and phonon spectra, redistributing the Eliashberg function to enhance effective coupling in metallic nanohybrids.