293 citations · 3.9k across the 95 of their papers we have counts for
95 papers
Attractive Su-Schrieffer-Heeger-Hubbard Model on a Square Lattice Away from Half-Filling
Bo Xing, Chunhan Feng, Richard Scalettar +2
The Su-Schrieffer-Heeger (SSH) model, with bond phonons modulating electron tunneling, is a paradigmatic electron-phonon model that hosts an antiferromagnetic order to bond order t…
Superconductivity with Wannier-Stark Flat Bands
Si Min Chan, Alexei Andreanov, Sergej Flach +1
We investigate superconducting transport in the DC field induced Wannier-Stark flat bands in the presence of interactions. Flat bands offer the possibility of unconventional high t…
Enhancement of Charge Density Wave Correlations in a Holstein Model with an Anharmonic Phonon Potential
C. Kvande, C. Feng, F. Hébert +2
The Holstein Hamiltonian describes itinerant electrons whose site density couples to local phonon degrees of freedom. In the single site limit, at half-filling, the electron-phonon…
Designer Flat Bands: Topology and Enhancement of Superconductivity
Si Min Chan, B. Grémaud, G. G. Batrouni
We construct quasi one-dimensional topological and non-topological three-band lattices with tunable band gap and winding number of the flat band. Using mean field (MF) and exact de…
Charge Singlets and Orbital-Selective Charge Density Wave Transitions
Yuxi Zhang, Chunhan Feng, Rubem Mondaini +2
The possibility of "orbitally selective Mott transitions" within a multiband Hubbard model, in which one orbital with large on-site electron-electron repulsion is insulating…
Phase Diagram of the Su-Schrieffer-Heeger-Hubbard model on a square lattice
Chunhan Feng, Bo Xing, Dario Poletti +2
The Hubbard and Su-Schrieffer-Heeger Hamiltonians (SSH) are iconic models for understanding the qualitative effects of electron-electron and electron-phonon interactions respective…